Simplify the following text for a Grade 5 native English-speaking person.
Original: Tsukasa Umesaki is a Japanese football player , who as of December 26 , 2007 joined Urawa Red Diamonds from Oita Trinita .
Simplified: Tsukasa Umesaki ( born 23 February 1987 ) is a Japanese football player . He plays for Urawa Red Diamonds .