Rossi faces his old club with Villarreal tomorrow night and Evra said: "I knew he was going to be a good player.
"It was easy. Everybody knows Giuseppe Rossi. If you give him the ball in the box he will score every time.
"He is such a good professional. I am not surprised what he is doing now.
"When he left Manchester United I could only wish him all the best, but not against us on Tuesday."
Evra can understand why Rossi chose to leave a year ago.
"I sometimes say to the strikers here 'Thank God I am a defender'," said the former Monaco full-back.
"You see all the names and realise just how hard it is. Believe me, just because Giuseppe Rossi did not play very often for Manchester United is not really a reflection on his talent."