The A's optioned Opening Day starter Kendall Graveman to Triple-A Nashville Thursday, along with fellow RHP Chris Bassit. In a corresponding move, newly acquired RHP Wilmer Font was activated to the 25-man roster.
Graveman struggled mightily in his six starts this season, going 0-5 with an 8.89 ERA. His five losses lead the major leagues, as do his 28 runs and 41 hits allowed.
The 27-year-old earned his first quality start of the season Wednesday night at Texas, allowing three runs in six innings, but still took the loss. Last season, Graveman went 6-4 with a 4.19 ERA in 19 starts.
Bassitt was recalled from Nashville last Friday, but did not appear in a game with the A's. The 29-year-old is 1-0 with a 0.69 ERA in three relief appearances with Nashville this season.
Font was acquired from the Dodgers Wednesday for LHP Logan Salow. The 27-year-old went 0-2 with an 11.32 ERA in six relief appearances with Los Angeles.