The following sporting stars celebrate their birthday on 21st March
1974: Former Tunisian footballer Jose Clayton is born (celebrates 38th birthday).
1980: Flamengo's former world player of the year Ronaldinho is born (celebrates 32nd birthday).
1982: Arizona Diamondbacks Major League Baseball player Aaron Hill is born (celebrates 30th birthday).
1988: Sunderland's controversial captain Lee Cattermole is born (celebrates 24th birthday).
