Ken Edward Greene is a former professional American football

American football

American football is a sport played between two teams of eleven with the objective of scoring points by advancing the ball into the opposing team's end zone. Known in the United States simply as football, it may also be referred to informally as gridiron football. The ball can be advanced by...

 player who played safety for the St. Louis Cardinals

Arizona Cardinals

The Arizona Cardinals are a professional American football team based in Glendale, Arizona, a suburb of Phoenix. They are currently members of the Western Division of the National Football Conference in the National Football League...

 (1978–1982) and the San Diego Chargers

San Diego Chargers

The San Diego Chargers are a professional American football team based in San Diego, California. they were members of the Western Division of the American Football Conference in the National Football League...

 (1983–1984).

He appeared in the 13th season of The Amazing Race

The Amazing Race 13

The Amazing Race 13 is the 13th installment of the reality television competition series The Amazing Race. It featured 11 teams of two, each with a preexisting relationship, in a race around the world....

. His partner was his estranged wife, Tina Greene. The goal on the race was to try to mend their broken marriage. They finished the race in 2nd place and ultimately lost the $1 Million grand prize and The Amazing Race 13 winners' title to the brother and sister team of Nick and Starr, but agreed to give their marriage another try.