TUCSON, Ariz. — After only a half season as their closer, Manny Corpas agreed to a four-year contract with the Colorado Rockies worth $22 million if the team exercises options for 2012 and 2013.

The 25-year-old Panamanian right-hander replaced three-time All-Star Brian Fuentes as Colorado's closer last season. He played an integral role in the club's first World Series berth, where the Rockies lost to the Boston Red Sox.

After earning the closer job on July 7, Corpas saved 19-of-20 games and went 4-2 with a 2.08 ERA, the lowest by a reliever in club history. He starred in the playoffs, going 1-0 with a 0.87 ERA in nine appearances.

Corpas' deal is the longest signed by a Rockies reliever and comes six weeks after shortstop Troy Tulowitzki signed a six-year, $31 million contract, the largest signed by a second-year player.

Corpas, who signed as a non-drafted free agent in 1999, is among the first wave of players to graduate from the Rockies' fledgling Latin American program. He made his first big league appearance on July 18, 2006, and is 5-4 with a 2.53 ERA in 113 career appearances, including 78 last season.

The 2012 club option would cover Corpas' final year of arbitration and the '13 option would cover his first year of free agency.