Wenger's side were undone by a one-man show as Messi hit four goals past them to send Barcelona to the Champions League semis.

"He's like a PlayStation," the Arsenal coach said after the 4-1 defeat at Nou Camp.

"I think he can take advantage of every mistake you make. Barcelona are a very good side but of course they have Messi who can make the difference at any moment in the game.

"He is very young but he can achieve a lot - there are not many players who can score four goals like he did.

"He has six or seven great years ahead of him and he can become unbelievable - touch wood nothing happens to him."

Enjoy

Barca manager Pep Guardiola is delighted with his star player's devastating form as he looks forward to Saturday's clash with Real Madrid.

"I’m very happy for him. I can’t explain what it is that he’s got about him, you just have to watch it and enjoy!" said Guardiola.

Messi took his tally with Barca to 119 goals as he leads the scoring charts in La Liga as well as the Champions League.