Travis Shaw’s first-inning home run accounted for Milwaukee’s lone run as the Brewers fell to Oakland 9-1 at Hohokam Stadium in Mesa, Ariz.
The Brewers managed just three hits the rest of the game – doubles by Mario Feliciano, Billy McKinney and Pablo Reyes.
Josh Hader made his spring debut and allowed two home runs in 2/3 of an inning. He also walked a batter, accounting for a third run, and recorded a pair strikeouts.
Brett Anderson started for Milwaukee and pitched two innings, allowing one unearned run on two hits with one punchout.
The Brewers host Kansas City on Thursday at 2 p.m. The game can be seen on FOX Sports Wisconsin.