Simplify the following text for a Grade 8 native English-speaking person.
Original: Masakatsu Miyamoto ( born July 4 , 1938 in Hitachi , Ibaraki , Japan ; died May 7 , 2002 in Mito , Ibaraki , Japan ) was a Japanese football player and manager .
Simplified: Masakatsu Miyamoto ( born 4 July 1938 - died 7 May 2002 ) is a former Japanese football player .