On March 26, 2010, Schoeneweis signed a minor league contract with a spring training invitation with the Boston Red Sox .  In 15 games and 31 innings at Fenway Park in his career, he had a ERA, with a .168 batting average against and .224 slugging percentage against.  According to Red Sox pitching coach John Farrell , one of the main factors in the competition for the final two roster spots in the bullpen was "being able to match up left on left".  Red Sox manager Terry Francona said: "I haven't even seen Schoeneweis yet, but the one thing he's been able to do is get left-handers out."  According to a team source, he was to make $500,000 if he were to make the team.