The following sporting stars celebrate their birthday on 21st December
1974: Australian golfer Karrie Webb is born (celebrates 36th birthday).
1984: Sheffield Wednesday midfielder Darren Potter is born (celebrates 26th birthday).
1981: Parma right-back Cristian Zaccardo is born (celebrates 29th birthday).
1981: England right-arm fast bowler Sajid Mahmood is born (celebrates 29th birthday).
