Arsenal title winner Paul Merson believes Nicolas Anelka underachieved in his career.
Merson says Anelka could've been the best in the world with greater application.
Merson told the League of Legends show: "I played with a kid who came over to England and I definitely thought that he was going to be better than the Brazilian Ronaldo - and that was Anelka.
"When he came over, he was about 17 and he was leaving Tony Adams and Steve Bould on their backside every two minutes.
"We used to do this one-on-one where we would stand in between the halfway line and the 18 yard box and the defender would start on the 18 yard line.
"George Graham would chip the ball into you and you would have to take on the defender one-on-one and then you'd have to try and beat the goalkeeper.
"I don't think he ever missed.
"He managed to get past the defender, who ever he was doing it against, then Dave Seaman would come out and he would go round him like he wasn't there.
"I seriously thought that he was going to be the best in the world - and he should have been. He should have been as good as Ronaldo."
But what held him back?
"He didn't really get on with the lads at the time. A few of the lads didn't really get on with him, they thought he was arrogant.
"I didn't, I thought he was a top bloke. I played in the reserves a couple of times with him when I was injured and he was a good player.
"That is a question you would probably have to ask him. He should have been the best in the world."