When Jose Mourinho and Arsene Wenger are ReUnited at Old Trafford on Saturday, the Manchester United and Arsenal managers will both have decisions to make up front. With Zlatan Ibrahimovic suspended and doubts over whether Alexis Sanchez is fully fit, there could be changes for both teams. Six months half price Upgrade to Sky Sports to watch Man Utd v Arsenal on Saturday and get the first six months half price As former United defender and Sky Sports tactics expert Danny Higginbotham explains, the impact of those changes could be hugely significant to how the game pans out. For the home side at Old Trafford, its not just the loss of Ibrahimovic but how replacing him with Marcus Rashford changes the job of the midfielders as well.With Michael Carrick providing protection, Wayne Rooney, Paul Pogba, Marouane Fellaini and Juan Mata were able to offer support to the Swede in the 3-1 win at Swansea last time out. How will Manchester United adapt without Zlatan Ibrahimovic? What that meant was that these four could get closer to Ibrahimovic, Higginbotham tells Sky Sports.Against Swansea, the amount of times that Ibrahimovic came that little bit deeper meant we saw Rooney getting beyond him, Pogba getting beyond him, even Fellaini getting beyond him and Mata getting beyond him.Because Mata and Rooney were playing narrow that allowed space for the full-backs to get involved too. They used the width very well. Zlatan Ibrahimovic is the only forward yet to miss a minute of football in this seasons Premier League. But thats how Ibrahimovic plays. The problem that Manchester United could well have is that it could be Rashford up front. I think that changes the midfield for Manchester United.While Ibrahimovic wants to come deep, what youve got with Rashford is a player who likes to play on the shoulder.He wants to do the complete opposite. He wants to find the spaces between the centre-halves and down the channels. Higginbotham looks at Arsenals tactical options at Old Trafford So the problem that you have is that all of a sudden Rashford is a lot higher up the pitch. Therefore theres more distance for the midfield players to cover to get up in support.Thats why I wouldnt be surprised against Arsenal to see more pace in the wide areas. Rashford is a different type of forward so you need different types of midfielders behind him.Its a similar story with Arsenal given the contrast in styles between Sanchez and the man hes replaced as first-choice forward Olivier Giroud. Mesut Ozils change of emphasis Season Apps Goals Assists 2013/14 26 5 9 2014/15 22 4 5 2015/16 35 6 19 2016/17 10 3 1 Higginbotham feels Sanchezs style of play has led to Mesut Ozil scoring more this season rather than just assisting.The difference with Giroud is that he needs that pass, he says. He needs the support of someone like Ozil to not get beyond him so Ozil can then play the passes through to the likes of Theo Walcott.The difference when Sanchez is playing up front is massive because what youll find with his build and how quick he is, is that he can turn on his own in one or two touches. What that means is that Ozil doesnt even have to worry about it. Hes off. So is Walcott. What they can actually do is get beyond Sanchez and theyve done it so often this season.There are very different striker options for both teams and it will be interesting to see how it plays out and how it impacts on the midfield players.Upgrade to Sky Sports now to watch Man Utd v Arsenal this Saturday and get the first six months half price! Also See: Who wins the social media showdown? Which team has had the best player? Wengers poor record against Mourinho Pundits predict Man Utd v Arsenal Cheap Jerseys . Then the Pacers gave Oladipo and his Orlando teammates the cold shoulder. 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Mike McDonald Jersey Online . -- Peyton Manning will have all of his wide receivers available for the first time in a month when the Denver Broncos begin their playoff run Jan. RIO DE JANEIRO -- Hes back. Hes back among the greats. Six months after his return to the circuit, Juan Martin del Potro reminded everyone in Rio de Janeiro that he belongs among the very best.The former world No. 4 and 2009 US Open winner made it clear that after several wrist surgeries he belongs in the top 10 when healthy. He managed to defeat Novak Djokovic and Rafael Nadal at the Rio Olympics, becoming the only Argentine tennis player to win two Olympic medals.One month before turning 28, the extremely powerful Tower of Tandil made the podium once again in his second Olympic appearance. He took the bronze medal in London 2012, and this time, he won silver, stopped only by Andy Murray in the final match.Gabriela Sabatini was the first of Argentinas tennis players to step on an Olympic podium; her silver was followed by three bronze medals by the country (Javier Frana and Christian Miniussi in doubles at Barcelona in 1992 and then by Paola Suarez and Patricia Tarabini in doubles at Athens in 2004).To the surprise of almost everyone, del Potro reached his 26th final in a tournament where he drew a tough opening match against Djokovic. Del Potro later showed authority and character in overcoming Nadal in the semifinals. Del Potro has been back for six months, and hes already challenging the tennis elite.With his massive serve and forehand, plus a backhand that is slowly starting to regain strength, del Potro showed great mental strength to prevail in the most challenging circumstances. This was his first final in 2? years (Sydney, 2014).Del Potro is now a seasoned player, hardened by the impact of his four wrist surgeries and the threat of early retirement. Hes mature enough to fully apprreciate the Olympic environment.dddddddddddd Hes no longer that kid who surprised the world by defeating the very best to win the US Open. Hes now showed another side of his personality by sharing celebrations with his fans, and even embracing some of them as he did after beating Nadal on Saturday.It became increasingly clear that del Potros No. 141 ranking is a poor indication of his ability. Its a shame, really, that the Olympics dont give ranking points, because with his great performance, he could have made up a lot of ground.But if he goes on playing like this, del Potro will soon improve his ranking. He will, because he is one of the greats, and not just physically. It was not by chance that he crushed Nadal in the 2009 US Open semifinals and then overcame Roger Federer to win his only Grand Slam final two days later.Its not by some quirk of fate that del Potro has managed 37 wins against top 10 contenders. Before Djokovic and Nadal in Rio, del Potro took out Stan Wawrinka, the world No. 5, at Wimbledon. This explains why del Potro is so greatly respected by all his rivals.A month ago, del Potro returned to Davis Cup -- after almost four years -- to provide a key point in doubles. Theres a big semifinal coming in Glasgow a month from now against Murrays Great Britain team, the reigning Davis Cup champions. So del Potros performance in Rio was crucial toward building up his confidence.Im living a dream once again, del Potro said in Rio on Sunday.And what he did was the stuff of dreams. He was awarded a silver medal, but his achievements were truly golden. ' ' '