A's starter Drew Pomeranz, in the middle of a fierce rotation competition, struck out six in three innings in his second exhibition start, but he also proved inefficient with his pitches, needing 59 total -- with only 35 thrown for strikes.
The lefty retired six of his first seven batters before loading the bases in the third for Anthony Rizzo, whose grounder resulted in two errors on first baseman Matt Olson. The A's prospect bobbled the ball before throwing it away, allowing two runs to score, one unearned.
A's infield prospect Max Muncy collected three hits in the game, bringing home Craig Gentry with an RBI single in the first, doubling in the third and adding a two-run home run in the bottom of the eighth off Donn Roach.
Up next: The split-squad Cubs remain separated by 300 miles on Saturday. Kyle Hendricks starts against the A's in Las Vegas at 2:05 p.m. CT (live on Gameday Audio), and Edwin Jackson gets the ball in Phoenix against the Brewers an hour later (live on MLB.TV and Gameday Audio). For the club remaining in Arizona, Starlin Castro will play short and hit third. He'll be teamed up with double-play partner Arismendy Alcantara, who will play second and hit second.
Jane Lee is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.