Rafael da Silva expects big things from Manchester United teammate Shinji Kagawa next season.

The Japan international shone at times during last term.

"I'm sure about that. He's a clever player. Maybe it's always hard when you come over and it's been the first season for him. He is Japanese and played in Germany, where it's a completely different type of football. But he's a clever player and shows this in training," Rafael told manutd.com.