Here are some of the people in the sports world celebrating birthdays on December 13:

Ferguson Jenkins
Age: 70
Profession: Retired MLB Player
Best Known For: A three-time All-Star pitcher, Ferguson Jenkins played for the Philadelphia Phillies, Chicago Cubs, Texas Rangers and Boston Red Sox from 1965 to 1983. He won the National League Cy Young Award in 1971 with the Cubs. A 20-game winner in six consecutive seasons from 1967 to 1972, Jenkins was inducted into the Baseball Hall of Fame in 1991.

Richard Dent
Age: 52
Profession: Retired NFL Player
Best Known For: A four-time All-Pro defensive end, Richard Dent played with the Chicago Bears, San Francisco 49ers, Indianapolis Colts and Philadelphia Eagles from 1983 to 1997. A ferocious defender with the Bears, Dent was named the Most Valuable Player of Super Bowl XX, won by Chicago. He was also a member of the 49ers' team that won Super Bowl XXIX. Dent finished his career with 137.5 sacks. He was inducted into the Pro Football Hall of Fame in 2011

Gary Zimmerman
Age: 51
Profession: Retired NFL Player
Best Known For: A seven-time Pro Bowl offensive tackle, Gary Zimmerman played with the Minnesota Vikings and Denver Broncos from 1986 to 1997. He started 169 games in a row from 1986 to 1996. Zimmerman originally played with the Los Angeles Express of the now-defunct United States Football League. He was named to the NFL All-Decade Team for both the 1980s and 1990s. Zimmerman was inducted into the Pro Football Hall of Fame in 2008.

Bo Pelini
Age: 45
Profession: College Football Coach
Best Known For: Bo Pelini is the head football coach at the University of Nebraska. He has been with the school since 2008. Pelini was the defensive coordinator at LSU from 2005 to 2008. He played college football at Ohio State from 1987 to 1990.

Sergei Fedorov
Age: 43
Profession: Retired NHL Player
Best Known For: A six-time All-Star center, Sergei Fedorov played for the Detroit Red Wings, Mighty Ducks of Anaheim, Columbus Blue Jackets and Washington Capitals from 1990 to 2009. He defected from his Russian team, CSKA Moscow, in 1990. Federov was a key member of the Red Wings' teams that won the Stanley Cup in 1997, 1998 and 2002. In 1994, he won the Hart Memorial Trophy as the league's most valuable player, the Lester B. Pearson Award as the league's most outstanding player and the Frank J. Selke Trophy as the league's best defensive forward.

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