Diaz allowed two runs on no hits while walking four to earn a hold in one-third of an inning in Monday's 6-5 win over the A's.

A day after giving up a walk-off homer to Kevin Pillar in the bottom of the ninth in a tie ballgame, Diaz was much sloppier in this one. The hard-throwing righty walked four of the five batters he faced to force in a run and was removed in favor of Tony Zych, who induced a run-scoring groundout from Khris Davis before striking out Adam Rosales looking to end it. Diaz's inexperience is showing through with his 5.28 ERA, although he's striking out a cool 11.7 per nine innings. While there's no indication yet that Diaz's job may be in jeopardy, the M's have more options now that Steve Cishek (hip) returned from the disabled list Monday.