Aitor Karanka could yet resolve his issues with Middlesbrough and remain in charge of the club, Sky Sports News HQ understands. Karanka did not travel for Boros 2-0 defeat against Charlton at The Valley on Sunday, with assistant manager Steve Agnew taking charge of the team instead.The Middlesbrough boss is thought to have stormed out of the clubs Rockcliffe Training Ground on Friday after telling his players he no longer wanted to be their manager. It is understood Karanka is now due to meet with the clubs hierarchy on Tuesday to discuss his future.Sky sources believe there is a will from both sides to address the situation positively rather than part ways. Highlights of Middlesbroughs 2-0 Championship defeat at Charlton on Sunday That could therefore see the Spaniard stay in his position after he had looked set to leave this week.If he does remain, Karanka will have to work quickly to repair his relationship with his squad in order to prevent Middlebroughs promotion challenge from faltering further.The 42-year-old is believed to have questioned the teams desire to reach the Premier League in a heated exchange following a 1-0 defeat to relegation-threatened Rotherham on Tuesday. Steve Agnew took Middlesbroughs team at Charlton in Karankas absence It is understood it was not the first time Karanka has had an altercation with his players this season, having already clashed with wingers Albert Adomah and Stewart Downing.Travelling Boro fans were vocal in their backing of Jose Mourinhos former Real Madrid assistant during the weekend defeat in London. Stewart Downing in action for Middlesbrough After the club released a statement on Saturday morning saying Agnew would be in charge at Charlton, no more official comment has been made.Speaking to Sky Sports before kick-off at The Valley, Agnew said: The club have released a statement so we have to just respect the wishes of the club and prepare for a football match. Get Sky Sports Alerts Breaking news, line ups and goal alerts from your football club - direct to your mobile Also See: Charlton 2-0 Middlesbrough As it happened Karanka in player bust-up Boro fall late at Rotherham Swell Levně . -- The Portland Timbers and Real Salt Lake played to a 0-0 tie Saturday night that left the top of the Western Conference standings unchanged. Swell Lahev . During the athletes parade, the 23-strong Ukrainian team was represented by a lone flagbearer in an apparent protest at the presence of Russian troops in Ukraines Crimean peninsula. http://www.swelllahevcz.com/ . Supported by three-run homers from Jayson Werth and Wilson Ramos, the young right-hander went seven strong innings in the Washington Nationals 8-4 victory over the Arizona Diamondbacks on Friday night.Ahead of Saturdays meeting between the sides, Jon Holmes takes an in-depth look back at Pizzagate - the famous Manchester United and Arsenal clash from 2004. Football is not a war, insisted Arsene Wenger to the gathered press corps, as he prepared to take his troops north to Old Trafford for the 10th game of the 2004/05 Premier League campaign.Since I have been in the game, its always about war and fights - and football is not about that. After a record 49 league matches without defeat, Wenger could have been forgiven for adopting a zen-like mentality towards the rough and tumble of domestic conflict. After the elation of his third English title triumph, achieved in a manner of total supremacy, the Frenchman had seen his sharp-shooting Gunners begin the new season looking equally imperious.Top of the table with 29 goals scored, they were 11 points ahead of seventh-placed Manchester United and appeared to be marching already towards another title. A pretender to the crown called Jose Mourinho had also arrived on these shores but at this point in history, there could be little argument that Arsenal ruled the land. Gary Neville recalls the game in 2004 where Manchester United ended Arsenal’s 49-game unbeaten run which resulted in a tunnel fracas Meanwhile, in the north, the Red Devils still carried scars - more wounded pride than physical traces - from the Battle of Old Trafford the previous September. United and Arsenal had slugged out a bitter stalemate, which ended in Martin Keown goading Ruud van Nistelrooy after the latter failed from the penalty spot in the 90th minute, igniting a powderkeg of on-pitch confrontations. Mike Riley tries to keep the peace between Gary Neville and Edu Even though the Gunners had four players banned for a total of nine matches and received a £175,000 fine (the largest ever handed down by the Football Association to a single club), there was no sense of shame. Instead, Wenger was proud of how his players had stood up to United and claimed their five seconds of bad behaviour was a rare character lapse from a team of great entertainers.He had a point; Arsenal still finished top of the Fair Play league that season, despite the rap. Sir Alex Ferguson scowled, said the north Londoners had got off lightly and even accused them of cutting some sort of deal with the FA in advance of their disciplinary hearing. Surprisingly, the Scot was not charged himself for that comment; mind you, there would be more than enough run-ins between him and Soho Square in the years that followed.Of course, Ill be telling my players there can be no repeat of what happened last season, continued Wenger to the media. We have a responsibility to keep things as much within football as possible. They acted as though the rest of the world was meant to sit back and admire their beautiful football. Sorry, count me out. Gary Neville That proved to be wishful thinking. Any inner serenity Wenger may have attained was about to be ended by a United side determined to usurp the upstarts from down south. As Gary Neville noted in his autobiography: They acted as though the rest of the world was meant to sit back and admire their beautiful football. Sorry, count me out. Some of us had a mission to stop them by all legitimate means.Come matchday, the locals were revolting. The proposed takeover of United by Malcolm Glazer was drawing near; the American tycoon having taken his stake in the club to 28.1% by this stage. Over 1,000 fans marched on the United Megastore carrying a Not For $ale banner, but they would not be able to prevent Glazers full ownership being ratified by the following summer. Man Utd fans demonstrate against the proposed Malcolm Glazer takeover Steve Bennett had taken charge of the previous seasons United v Arsenal clash, but it would be Mike Riley - Englands Euro 2004 referee - who got the gig this time. Before the game, Rileys boss Keith Hackett described the Yorkshireman as calm, takes firm action when necessary and doesnt over-react, before adding: You want a referee to be like a good orchestra leader, baton in hand, controlling the tempo. Wenger would be asking for a refund on his concert ticket by the final whistle.At least Riley would have been relieved to note the absence of firebrand Roy Keane from the United team-sheet due to a virus. Rio Ferdinand led out the hosts instead, but was hugely fortunate not to walk back down the tunnel after 19 minutes. Edus excellent through-ball sent Freddie Ljungberg sprinting towards goal and he reached the pass before the United skipper, only to then be taken out. However, Riley - behind the play - chose not to call a foul. I used to think they were bad losers, they probably thought we were as well! But every time they lost they seemed to handle it not too well, and I think they probably thought the same about us. Gary Neville Soon afterwards, Gary Neville made a poor, late tackle on Jose Antonio Reyes - but Riley kept his cards in his pocket. Wenger was already shaking his head in disbelief as persistent rain set in. An untidy coming together between Cristiano Ronaldo and Patrick Vieira saw Riley briefly surrounded. Then Van Nistelrooys touch was just a little too heavy after Nevilles throw-in doown the right flank - Ashley Cole came back to intercept, and the Dutchman caught the left-back on his knee, sending him down in a crumpled heap.ddddddddddddBarely 30 minutes had been played.Fortunately Cole was soon back on his feet, but frustration got the better of him and a kick out at the escaping Wayne Rooney brought the games first booking. Gary Neville had another snap at the heels of Reyes and his name was taken too, quickly followed by brother Phil for a foul on the same Arsenal player. The visitors had actually played fairly adventurously up until this point, but United were determined to unsettle their rhythm. The half ended with more handbags as Gabriel Heinze and Thierry Henry got tangled up in the corner. The game between Man Utd and Arsenal was memorable for its tough tackling After the break, neither goalkeeper was significantly troubled until Jens Lehmann had to hang onto Heinzes shot, after Edu had been grounded by what he felt was a hand-off. Fed up of getting kicked himself, Reyes had taken to getting some of his own back and went for Ronaldo before being replaced by Robert Pires on 70 minutes.In his previous seven visits to Old Trafford, Riley had awarded United seven penalties. He maintained that ratio as Rooney, celebrating his 19th birthday, exchanged passes with Ryan Giggs on the right before going down in the box as Sol Campbell waved his left leg in the strikers path. Lehmann tried to put Van Nistelrooy off again, just like 13 months before, but the Dutchman stroked the ball home low and ran off roaring with delight, his demons thoroughly exorcised. Ryan Giggs and Rio Ferdinand celebrate in the rain after the final whistle Now there was a tear in Arsenals cloak of invincibility. Vieira and Edu clattered into Giggs and Scholes respectively and were booked. Pires set up Cole for a possible equaliser, but the defenders shot was always rising. The Gunners had to go for broke - and inevitably left themselves open to the decisive blow. In the 90th minute, Ronaldo played the ball forward for subs Louis Saha and Alan Smith to combine and the latters low centre was side-footed home by Rooney. The teenager even gave Lehmann a cheeky slap in the face after the goalkeeper tried to wrestle the ball back from him.After the final whistle, Campbell wouldnt shake Rooneys hand, while Henry harangued United keeper Roy Carroll all the way down the tunnel. But if the Arsenal players had lost their rags, Wenger was even worse. According to Fergusons recent autobiography, the Gunners boss was letting fly with a few choice words at Van Nistelrooy as the two sides headed back to their dressing rooms.He [Wenger] was livid. His fists were clenched, said Ferguson. I was in control, I knew it. There are often boxes of post-match pizza in dressing rooms, with players encouraged to load up quickly on lost carbohydrates. On this occasion, however, with tempers flaring in the tunnel, someone threw a slice in anger.This slice of pizza came flying over my head and hit Fergie straight in the mush, wrote Ashley Cole in My Defence in 2006. The slap echoed down the tunnel and everything stopped - the fighting, the yelling, everything. All eyes turned and all mouths gawped to see this pizza slip off that famous puce face and roll down his nice black suit. Arsenal manager Arsene Wenger has a word with match referee Riley Ferguson admitted in his own autobiography: The next thing I knew, I had pizza all over me. They say it was Cesc Fabregas who threw the pizza at me but, to this day, I have no idea who the culprit is. The corridor outside the dressing-room turned into a rabble. It seemed to me that losing the game scrambled Arsenes brain.Fabregas, then a seemingly innocent 17-year-old and an unused sub in the game itself, has never admitted to being the phantom pizza thrower - but has always been the prime suspect. In addition, it was claimed Lehmann squirted Ferguson with a water bottle as the tunnel row got out of hand. The United boss had to change out of his suit and into a club tracksuit to conduct his post-match interview. Man Utd manager Sir Alex Ferguson celebrates his teams victory Wenger could barely contain his fury, telling reporters: I cant be happy about the penalty, I cant be happy about the incident when Freddie Ljungberg was through on goal and I cant be happy that [Jose Antonio] Reyes was kicked off the park deliberately. The players have a deep sense of injustice.For his part, Van Nistelrooy was later charged with violent conduct by the FA for his first-half challenge on Cole and received a three-match ban.United followed up their victory with a 2-0 defeat at Portsmouth. Although Fergusons side wouldnt lose again in the Premier League until the following April - a run that included a 4-2 triumph at Highbury in early February, when Keane and Vieira had their famous pre-match tunnel bust-up - they failed to overhaul the Gunners in the table.OvertakenTwo weeks after losing to United, Arsenal were overtaken by Mourinhos Chelsea at the summit. The Blues would not their lead slip, going on to win the title by a margin of 12 points. United were six points further back in third spot.The season ended with Arsenal beating United 5-4 on penalties in the FA Cup final, despite being outplayed for 120 goalless minutes in Cardiff. Lehmann made the crucial save in the shootout from Paul Scholes. Arsenal also won the Premier League Fair Play award for the second season running.The bitter enmity between the Arsenal and United managers continued until 2009, when they finally buried the hatchet in the Frenchmans office after the Champions League semi-final. By that point, the Battle of the Buffet had long since passed into Premier League legend.Man Utd v Arsenal is live on Sky Sports 1 HD from 11.30am on Saturday. Six months half price Upgrade to Sky Sports to watch Man Utd v Arsenal on Saturday and get the first six months half price Also See: Wenger v Mourinho in quotes Herrera: Life good under Jose ' ' '