Here are some of the people in the sports world celebrating birthdays on September 30:

Jamal Anderson

Age: 40
Profession: Retired NFL Player
Best Known For: A Pro Bowl running back, Jamal Anderson played for the Atlanta Falcons from 1994 to 2001. He led the NFC in rushing in 1998, the season the Falcons made the franchise's only Super Bowl appearance. Anderson often performed the 'Dirty Bird' touchdown celebration — flapping his arms and moving his hips — after he scored.

Jeremy Giambi

Age: 38
Profession: Retired MLB Player
Best Known For: Jeremy Giambi played for the Kansas City Royals, Oakland Athletics, Philadelphia Phillies, and Boston Red Sox from 1998 to 2003. Jeremy is the younger brother of Colorado Rockies' first baseman Jason Giambi. Jeremy was tagged out in the baseball play known as 'The Flip,' when New York Yankees' shortstop Derek Jeter flipped an errant throw from the outfield to catcher Jorge Posada to get a non-sliding Giambi out at the plate in an American League playoff game.

Martina Hingis

Age: 32
Profession: Retired Tennis Player
Best Known For: A five-time Grand Slam singles champion, Martina Hingis was the World No. 1 women's player for 209 weeks during her career from 1994 to 2007. Hingis also won nine Grand Slam women's doubles titles and one Grand Slam mixed doubles title.

Dominique Moceanu

Age: 31
Profession: Retired Olympian
Best Known For: Dominique Moceanu was a key member of the US women's gymnastics team that won the gold medal at the 1996 Summer Olympics in Atlanta.

Adam Jones
Age: 29
Profession: NFL Player
Best Known For: Adam 'Pac-Man' Jones is a cornerback and return specialist for the Cincinnati Bengals. Jones was selected with the sixth-overall pick of the 2005 NFL Draft by the Tennessee Titans, with whom he played through 2006. He was suspended by NFL Commissioner Roger Goodell for off the field conduct in 2007. He played for the Dallas Cowboys in 2008, before being suspended again by Goodell for another off the field altercation.