Ahead of the match against Manchester United, Arsenal manager, Unai Emery have been advised to sell Mesut Ozil if he wants his side to play with the mentality they did in the win against Tottenham at the weekend. The World Cup winner was left out of the side – with some reports claiming it was with a back injury.

And Paul Merson believes it may be a struggle for Ozil to get back in the side if they play the pressing game that they did in the 4-2 victory against their rivals. Pierre-Emerick Aubameyang netted twice with Alexandre Lacazette and Lucas Torreira also on target against Tottenham.

He told Sky Sports: “I’m a big fan of Ozil but if Arsenal are going to play like they did against Spurs, work like that as a team and close down, you can’t have one not buying into it. It doesn’t matter how good you are because everybody has got to be singing off the same hymn sheet, and I don’t see that with him.”

Aaron Ramsey was introduced against Tottenham at half-time by Emery and impressed in helping the Gunners to a victory. But Merson doesn’t think it will make any difference to his future at the club. Ramsey is out of contract at the end of the season and is expected to leave the Emirates.

He said: “I think Ramsey’s future is sorted. I know how it works in football. I’d be shocked if his agent hasn’t already got a deal from elsewhere on the table and it’s as good as agreed without him being able to sign yet.

“Ramsey’s going to keep playing where he can because he’s a good player. Unai Emery is not going to chop his nose off to spite his face, which I like. I know Ramsey hasn’t been playing from the start but Emery does turn to him a lot.

“He turns to him almost straight away when he needs him like against Tottenham and Ramsey delivers All credit to him as well, he’s a very good pro.”

Arsenal return to action against Manchester United tomorrow night in the Premier League (8pm). The Gunners currently sit fourth in the table, eight points behind leaders Manchester City.