The Mariners will bring up two of their top prospects on Thursday.
Seatte's top pitching prospect Logan Gilbert will get brought up from Tacoma and he will start Thursday against Cleveland.
Jarred Kelenic also got the call. He's considered a top 5 prospect in MLB.
The M's selected Gilbert 14th overall out of Stetson University in the 2018 MLB Draft.
The right-hander started the season with Tacoma. He only made one start with the Rainiers. He threw five innings, giving up one run on four hits and added five strikeouts.
Cleveland is scheduled to start Zach Plesac against the Mariners.