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03/07/11 11:55 PM EST

Hawpe belts first homer as a Padre

PEORIA, Ariz. -- The Royals took advantage of reliever Mike Adams' throwing error to break out for five runs in the fifth inning on Monday night on the way to an 11-3 Cactus League victory over the Padres.

Lance Zawadzki, Jarrod Dyson and David Lough delivered run-scoring hits after Adams threw away Chris Getz's high chopper back to the mound with men on second and third and one out, allowing both runners to score and wipe out San Diego's one-run lead.

Brad Hawpe had given the Padres an early lead in the second inning with his first spring homer.

"We're seeing that opposite-field swing we saw from him in Colorado," said San Diego manager Bud Black. "He has a lot of left-center power."

Starters Sean O'Sullivan and Dustin Moseley both turned in effective three-inning stints for the Royals (7-3) and the Padres (4-4-1), respectively. Sullivan allowed an infield single in addition to Hawpe's homer, and Moseley blanked Kansas City on a pair of singles.

"I thought it was a good pitch," O'Sullivan said of the 2-and-0 delivery to Hawpe. "He got it up in the air. Not a good night for fly balls."

The game was played with a stiff, 20-mph wind blowing out toward left field.

Up next for Padres: Tim Stauffer will be looking for better results when he makes his third start as the Padres visit Phoenix to play the A's on Tuesday at 12:05 p.m. PT. The righty has allowed five earned runs in his first 4 2/3 innings. Pitchers due to follow him include two re-assigned on Monday to the Minor League camp, righties Alexis Lara and Brad Brach. It will be the Padres' last Cactus League look at the A's, whom they defeated on Sunday, 7-6, in walk-off fashion.

Up next for Royals: When the Royals meet the Reds at 2:05 p.m. CT at Surprise Stadium on Tuesday, pitchers Danny Duffy, Blaine Hardy, Patrick Keating and Steven Shell will follow starter Kyle Davies, and manager Ned Yost will be watching closely.

"We have to see some better performances out of the some of the young pitchers. We're getting to the point where it's to your advantage to bring your 'A' game," Yost said.

Tom Singer is a national reporter for MLB.com. Follow @Tom_Singer on Twitter. This story was not subject to the approval of Major League Baseball or its clubs.