Slaten struck out one batter over 2.1 perfect frames and earned a save over the Mariners on Sunday.
In his second career MLB appearance, Slaten needed just 15 pitches to record seven outs and close out the 5-1 win. Kenley Jansen is dealing with a back issue, so the Red Sox's bullpen is shortened. Slaten likely won't see many save opportunities throughout the year.