The Seattle Mariners on Saturday reportedly placed starting pitcher Felix Hernandez on the 10-day disabled list with right biceps tendinitis.
MLB.com's Greg Johns tweeted the news.
Hernandez's trip to the DL was retroactive to Wednesday, and Johns noted the team would call up left-hander Marco Gonzales, who made his season debut in June but has spent the bulk of his year in Triple-A.
This is another setback for Seattle's ace after he missed time earlier in the season with a shoulder injury.
However, he has been durable throughout his career and entered the 2017 campaign with 11 straight seasons of 25 or more starts (10 of which featured 30 or more starts).