Shane Bieber was tagged for seven runs in four-plus innings by the Mariners on Saturday.

In 33 career plate appearances with the bases loaded, Bieber hadn’t allowed a grand slam until the second inning today, when Randy Arozarena hit one. He also gave up a two-run homer in the fifth to end his day after 89 pitches. Bieber’s fastball averaged 91.9 mph today, which was basically a match for his first two outings, and he’s already given up six homers in 13 innings. His ability to hit the corners will probably improve as he continues to start regularly, but unfortunately, he just doesn’t seem like a mixed-league guy right now. He’ll likely make his next start Friday in San Diego.