Ronaldo left the Red Devils to join Spanish giants Real Madrid earlier this summer.
“It is very difficult to replace Ronaldo,” The Times quotes Lampard as saying. “I don’t think he (Sir Alex Ferguson) will look to replace him, he will look to make the team strong as a whole by not having him. That is the only thing they can do.
“Messi is probably the only player you could replace Ronaldo with. The amount of times I flicked on the telly and saw Ronaldo had scored and they had won one or two-nil.”
