|Season 3, Episode 16|
|Air date||16 February 2007|
End of Watch
One of David's childhood friends is accused of murder while sparring in preparation for an All-Out Fighting (MMA) bout, and Charlie has a contest of his own trying to defend Larry's chair in a Texas Hold 'em qualifier.
- Beyond the immediate and literal, the title appears designed to evoke Marlon Brando's "I coulda bin a contender, Charlie" speech from On the Waterfront.