Alden Gonzalez of MLB.com reports that the Washington Nationals have signed veteran left-handed pitcher Shawn Estes to a Minor League contract.

Estes, turning 37 this month, will get $600,000 plus a possible $400,000 in performance bonuses if he’s added to the National’s 40-man roster.

Estes made 13 starts for the Dodgers’ Triple-A affiliate in Albuquerque, N.M., this past season, going 3-4 with a 3.07 ERA, before semi-retiring in June because he said he didn’t want to pitch in Triple-A.

The 1997 All Star has a career 101-93 record with a 4.71 ERA. He last pitched in the Majors in 2008 with the San Diego Padres when he went 2-3 with a 4.74 ERA in 9 games (8 games started). You can see Estes’ contract history and statistics here.