Jonny Evans has tipped his Manchester United team-mate Rafael da Silva to become one of the outstanding right-backs in world football.
Rafael, 22, has become an automatic choice at right-back this season and Evans believes the Brazil international will keep improving.
"He's been outstanding all season. With his energy, he really sets the tone for the rest of the players. He's a credit to himself," Evans told MUTV.
"He's working hard and he's going to be one of the best right-backs in the world, no doubt about that."
Midfielder Michael Carrick joined in the praise, adding: "He has progressed every year he has been here. He came across at a very young age and it was a big change from Brazil and what he was used to.
"Every season he has got better and better. He has played nearly every game this season and has been terrific. There is still more to come from him, he is still learning the game and is still improving, so it is great for him and he is having a good time."