The Pirates claimed Garrett Olson off of waivers from the Mariners, the teams have announced.
Olsen, 27, posted a 4.54 ERA with 7.4 K/9, 3.6 BB/9 and a 37.1% ground ball rate in 37 2/3 innings of relief for the Mariners last year. It was his second season in Seattle after two seasons with the Orioles, the organization that drafted him in the first round of the 2005 draft.
Olson figures to compete with Joe Beimel and Scott Olsen for left-handed relief jobs in manager Clint Hurdle's bullpen once he arrives in Pirates camp. Kirby Arnold of the Daily Herald first reported the claim.