Here are some of the people in the sports world celebrating birthdays on June 20:

Len Dawson
Age: 77
Profession: Retired NFL Player
Best Known For: A six-time American Football League All-Star, Len Dawson played most of his career with the Kansas City Chiefs prior to, and after, they entered the NFL in 1970. He was selected the AFL 's Most Valuable Player in 1962 and was a member of three AFL championship teams (1962,1966, 1969) for the Chiefs. After starting for Kansas City in a Super Bowl I loss to Green Bay, Dawson helped lead the Chiefs to a victory over the Minnesota Vikings in Super Bowl IV, earning the game's MVP award. He was inducted into the Pro Football Hall of Fame in 1987. Dawson served as the host of HBO's 'Inside the NFL' from 1977 to 2001. He is currently a broadcaster for the Chiefs radio network.

Carlos Lee
Age: 36
Profession:MLB Player
Best Known For: A three-time all-star, Carlos Lee is an outfielder/first-baseman who currently plays with the Houston Astros. During his playing career from 1999 to the present, Lee has also played with the Chicago White Sox, Milwaukee Brewers and Texas Rangers. After homering in his first major league at-bat in May of 1999, Lee has gone on to swat 353 career home runs.

Cael Sanderson
Age: 33
Profession: Retired Olympic Wrestler / Head Wrestling Coach
Best Known For: A gold medalist at the 2004 Summer Olympics in Athens, Cael Sanderson is one of the best amateur wrestlers of all time. With a record of 159–0, Sanderson went undefeated through four years of college wrestling at Iowa State University, winning four consecutive NCAA titles (1999–2002). He is the current head coach at Penn State University, which won the NCAA team wrestling championship in 2011.

Darren Sproles
Age: 29
Profession: NFL Player
Best Known For: New Orleans Saints' running back Darren Sproles is an all-purpose threat, setting the NFL record for most all-purpose yards in a single season with 2,696 in 2011. Having started his career with the San Diego Chargers in 2005, Sproles became the first NFL player to score his first two touchdowns on a kickoff and punt return. In late 2011, Sproles was on the receiving end of the Drew Brees' touchdown pass that allowed the New Orleans quarterback to break the single-season record for passing yards (5,084), held by Dan Marino since 1984.

Matt Flynn
Age: 27
Profession: NFL Player
Best Known For: Formerly a back-up quarterback to Green Bay Packers' All-Pro Aaron Rodgers, Matt Flynn was recently signed by the Seattle Seahawks, for whom he is expected to be the starting quarterback in 2012. A member of the Packers' Super Bowl XLV-winning team, Flynn filled in for a resting Rodgers in the final game of the 2011 season and set single-game franchise records in passing yards (480) and touchdowns (6) in Green Bay's 45-41 win over Detroit. In 2008, Flynn led Louisiana State University to the BCS national title over Ohio State.

Terrelle Pryor
Age: 23
Profession: NFL Player
Best Known For: Once the top high school football player in the country, Terrelle Pryor had added success at Ohio State University, being named the 2008 Big Ten Freshman of the Year and achieving All-Big Ten Honorable Mention honors in 2008, 2009 and 2010. After a 2010 special investigation indicated that Pryor had violated NCAA rules by selling sports memorabilia, he was suspended for the first four games of the 2011 season. He subsequently withdrew from Ohio State and entered the 2011 NFL supplemental draft, where he was selected by the Oakland Raiders in the third round. He is currently Oakland's third-string quarterback.

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