The Red Devils are set to pay Juventus over £100million for the 23-year-old French midfielder and although Forlan admits he is a very good player, he suggests former teammate Scholes would have to be valued at more if he still played today.
"If Paul Pogba is to cost €120m, imagine how much Manchester United would have needed to pay for Paul Scholes? The midfielder was the best player that I ever played with - by a distance," Forlan said in his column for The National.
"United were lucky in that Scholes had no need or desire to leave the club when he was a player. He was a local boy and a United fan, one of the few great players born near a club who are one of the biggest in the world.
"Pogba's a good player, I like him. He could well go onto become the best midfielder of his generation. Is he worth the figures being mentioned though? The answer: He's worth whatever any club is willing to pay for him."