Thought to be done inking Major League deals, the Red Sox had room for one more on Tuesday: former Yankees reliever Alfredo Aceves.

The 28-year-old Aceves is returning from injury, but he's a low-cost investment who's already shown an ability to pitch in the American League East. He's been signed to a one-year, $650,000 deal with a potential $100,000 more in incentives, a baseball source confirmed.

A right-hander from Mexico, Aceves has only pitched for one big league club, the Yankees, and he made just 10 appearances last season because of a problematic back. He also broke his left collarbone this offseason in a bicycle riding accident in Mexico, according to a Yankees announcement earlier this winter.

Aceves is 14-1 with a 3.21 ERA lifetime. He's struck out 87, walked 30 and allowed 15 home runs in 126 innings.

The Yankees were reportedly interested in bringing Aceves back on a Minor League deal.