Arsenal vs Man Utd: Paul Merson says it's a must win game for the Gunners.

Former England international Paul Merson is backing the Gunners to turn up in the clash against Manchester United on Sunday. The Premier League leaders head to the Emirates on Sunday looking to continue their winning run against Arsene Wenger's side and it's clear Louis van Gaal's men have been keeping Merson quiet. As for Arsenal, they need to respond after their poor performance against Olympiakos in the Champions League on Tuesday night at the Emirates. "This is a big game. I have been critical of United all season, questioning whether they are good enough. They have been playing well, nicking results here and there. If they win this game you've got to put them down as big players in the title race," the Arsenal legend told Sky Sports.

"Victory at the Emirates would make them second or even joint-favourites in my opinion. United haven't been incredible but they haven't done anything wrong." The football expert says reckons its a must win game for the hosts. "Arsenal have to win this game otherwise Arsene Wenger will be under severe pressure," he said. "The game will probably go how it does all the time. Arsenal will turn up, dominate the game and United will break on them and score. Despite that, I'm going to go for an Arsenal win because they simply have to."

Thinkfootballideas [@Thinkfballideas].