"Ron was amazing," said Lambert of the former Feyenoord skipper.
"When he took the ball on the run for 40 yards, I told him I pay him to defend, don't even do that!
"But I thought he was colossal on Saturday, and has been colossal. He and Ciaran Clark and the two full-backs were excellent.
"Ron's not a young kid, he's not 21, he has been at a huge football club himself and I just think he is a top player."