"Any world-class player who is going to bring something different to the club, you always welcome that whether that's Berbatov or whoever," former Spurs midfielder Carrick told the Metro.
"He's a very good player. I've watched him quite a bit because he's playing for my old club and I try and watch them whenever I can.
"He had a very good season last year and people are always going to link him with big clubs like United.
"As players here what you look for is a player coming in who can bring you something different, like Berbatov certainly would.
"I'm not saying he's better than what we've got, because we've got the best around up front.
"But we would welcome any world-class players who can strengthen the squad and Berbatov certainly would do that."