Simplify the following text for a Grade 5 native English-speaking person.
Original: Lee Barry Cattermole ( born 21 March 1988 in Stockton-on-Tees ) is an English professional footballer who currently plays as a midfielder for Sunderland in the Premier League .
Simplified: Lee Cattermole ( born 21 March 1988 ) is an English football player . He plays for Sunderland .