"The best midfielder I would say is Steven Gerrard. I really rate him as a player and as a man. I think he is still one of the best," Vieira said at an event run by Ford's Feel Football debate website www.feelfootball.com.
"Fabregas (has the potential to be the best). I think he is learning every year.
"Now he is a top quality player. He is one of the best. In the years to come he can be at the top."