To clear room on the 40-man roster, veteran outfielder Jose Tabata was designated for assignment, a move the club has not yet announced but showed up on Internet transaction reports. With two years and $9 million remaining on his long-term contract, Tabata will likely clear waivers, enabling the Pirates, if they choose, to outright him to Triple-A Indianapolis - as they did this June.
A ninth-round pick by Cleveland in the 2009 First-Year Player Draft, Guilmet has an impressive Minor League record and made brief Major League appearances in 2013 with the Indians and this season with Baltimore.
He has posted 100 saves in 236 Minor League games, with 378 strikeouts in 346 innings. He spent most of this season with Triple-A Norfolk, going 4-2 with 10 saves, picking up 54 strikeouts in 48 1/3 innings.
The 2014 season was Guilmet's second on the Triple-A level. In 2013, prior to his trade to Baltimore this April, he posted a 1.68 ERA in 49 appearances for Columbus, the Indians' affiliate in the International League.
He has been hit hard in 14 big-league appearances, allowing 16 hits and 12 runs in 15 2/3 innings. But in 10 outings for the '14 Birds, he struck out 12 in 10 1/3 innings.
Tom Singer is a reporter for MLB.com and writes an MLBlog Change for a Nickel. He can also be found on Twitter @Tom_Singer. This story was not subject to the approval of Major League Baseball or its clubs.