Simplify the following text for a Grade 7 native English-speaking person.
Original: Tomi Shimomura ( born December 18 , 1980 in Sapporo , Hokkaido ) is an Austrian-Japanese football player who currently plays for Montedio Yamagata .
Simplified: Tomi Shimomura ( born 18 December 1980 ) is a Japanese football player . He plays for Montedio Yamagata .