WEDNESDAY: Olson cleared waivers and has been outrighted to Triple-A, tweets Colin Dunlap of the Pittsburgh Post-Gazette.
FRIDAY: The Pirates announced that they designated Garrett Olson for assignment to create roster space for another southpaw, Joe Beimel. After a stint on the disabled list due to elbow inflammation, Beimel is set to pitch for the Pirates for the first time since 2003.
Pittsburgh claimed Olson from the Mariners in March and he allowed two hits and three walks in 4 1/3 innings, striking out four and posting a 2.08 ERA. Last year, the 27-year-old 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 with the Mariners. Olson, a 2005 first rounder, started 33 games for the Orioles in 2007-08 before they traded him.