Foster spent five years at United between 2005 and 2010, winning the League Cup twice during his time at Old Trafford. Scholes was past 30 when Foster joined United but he still claims the former England midfielder was, and remains, the best player he has seen.
"He's the best player I've ever seen live, he's the best player I've ever seen live," Foster told the Squeaky Bum Time podcast.
"Yep [above Cristiano Ronaldo]. He was effortless, everything just came so naturally to him.
"Striking a ball, if you could see him strike a ball, he didn't miss any part of the ball, it was all full, 100 per cent contact with the ball.
"He was beautiful, he was a beautiful player to watch."