The French defender says he's in good shape ahead of the Champions League final, but he realises just one mistake could prove costly with the Argentina international around...
The France international believes he is in good form ahead of the tie at Rome's Stadio Olimpico.
However, he realises that he can not switch off for one moment as one mistake could cost the Red Devils the trophy they are looking to retain.
"Of course I will endure a difficult night against Messi. I know that. I have a lot of respect for him but I am confident I can handle him," Evra told L'Equipe.
"I know that I could make 20 challenges and then lose just one and he could score. People would then say that I have failed.
"It is up to me to ensure that the story has a positive ending. (Sir Alex) Ferguson has said: 'Messi? Pat will take care of him'. I hope I don't disappoint him.
"I feel strong though. People can call me arrogant, but why should I lie? Of course I feel strong and of course I am proud as well.
"I am at the top of the pyramid, but I am not stupid and I realise that one small step could see me fall down very quickly."
The 28-year-old helped United beat Chelsea in Moscow to clinch the Champions League trophy in 2008 and having tastes success in the competition once, he wants to relive it several more times before his career at Old Trafford is drawn to a close.
"I remember in my first interview after I arrived in Manchester, I said: 'I didn't come here to play in the Champions League, I have come to win it'," he added
"At the moment I have one, but I want a second one and then a third one. That is my objective."
Ricky Brooks, Goal.com