Chelsea's interim manager Rafael Benitez, who was a Merseyside rival of David Moyes during his time as Liverpool manager, said: "He's a good manager."
"I think that he will have a very good team, so I'm sure he will compete at the top and he can win trophies with a big club.
"It's not easy to find someone like Ferguson, but he's a manager with experience in the Premier League. He knows the players, he knows the club and the Premier League.
"It could be a good appointment, but it takes time to say."
David Moyes will hold his weekly press conference this afternoon but will not answer questions about Manchester United manager.
Loyal, driven and fiercely competitive - the traits of the new Manchester United manager David Moyes
David Moyes has emerged as the frontrunner to succeed Sir Alex Ferguson as Manchester United manager.