MESA, Ariz. -- Ryan Dempster made his spring debut by giving up one run over two innings as the Cubs fell 8-7 to the Oakland A’s on Monday.

Oakland’s Yordy Cabrera put the A’s on top for good when he led off the ninth inning with a home run off Cubs minor-league reliever Tony Zych.

THE GOOD: The Cubs got plenty of production from their right fielders. Jeff Baker started there and went 2-for-2 with a double and two runs scored. Joe Mather, a non-roster invitee to camp, also had two hits with a pair of stolen bases and a run scored, but alas, he grounded into a double play to end the game.

THE BAD: Relievers Marco Carrillo and Manuel Corpas, both non-roster invitees to big-league camp, let a big lead get away by combining to allow six runs to score over a two inning stretch. Carrillo gave up four runs on three hits and two walks in two-thirds of an inning. Corpas gave up two runs on three hits over 1 1/3 innings.

BEYOND THE BOX SCORE: Blake DeWitt promised to relax and have fun this spring and on the first pitch he saw Monday he did just that with a three-run home run. No longer on the 40-man roster, DeWitt needs to earn his spot on the 25-man squad for Opening Day and he hasn’t hurt his chances. Along with his home run Monday, he had three hits in Friday’s intrasquad game.

UP NEXT: Cubs right-hander Matt Garza will face off against Rockies right-hander Guillermo Moscoso in a 1:05 p.m. MST start at HoHoKam Stadium.