Speaking to Coin Poker, the 46-year-old said: "No, I think he's a top player. He has a bit of a similar trajectory to what’s going on with Alejandro Garnacho. He arrived early but he developed without the right kind of players and people around him, maybe his entourage was a bad influence. He played with Wayne Rooney, but soon he was the main man, who was given too much responsibility.
"Maybe he was burdened with too much by the club, and it’s hard to just blame the player when the club expected so much from him. Perhaps it is unfair to expect so much and he simply could not cope with those demands. But in terms of quality, Rashford is still one of the best in the world on his day. He’s unbelievable, so I wouldn’t be surprised if he’s interested in Barcelona and they’re interested in him. He could be a great player for a big club."
He added: "The question for Marcus is if he can ever do it again regularly, can he be untouchable like he once was? He used to excel, and he’d be joining a really confident Barcelona squad with teenagers who are already unplayable. Lamine Yamal could be a Ballon d’Or winner soon, it’s crazy. Then there’s Raphinha, Robert Lewandowski, players like that who just don’t mess around. They know their job. Does Rashford?"