According to mlbtraderumors.com, the Seattle Mariners have lost relievers Chris Jakubauskas and Robert Manuel via waivers.
Jakubauskas, 30, made the Mariners opening day roster after an impressive spring training. He went 6-7 while posting a 5.32 ERA, but managed to post a solid WHIP of 1.27. Jakubauskas is more of a groundball pitcher, as 45.2 percent of his batted balls have been hit on the ground, according to FanGraphs.
To open the room for Jakubauskas, the Pirates designated Jeff Karstens for assignment.
Manuel, 26, was acquired from the Reds for outfielder Wladimir Balentien. He only pitched 4.1 innings this year for the Reds, spending most of the season in the minor leagues.
Meanwhile, the Mariners made several roster moves, adding six players to their 40-man roster.
They added outfielder Ezequiel Carrera, pitchers Anthony Varvaro, Danny Cortez, Ricky Orta, Edwardo Paredes, JC Ramirez, and reinstated injured players Ryan Feierabend and Sean White to bring their 40-man roster to 37.
Infielder Josh Wilson was sent down to AAA Tacoma after clearing waivers.