GOODYEAR, Ariz. -- Reds' ace Johnny Cueto endured his worst outing of camp Thursday vs. the A's, lasting only 1 2/3 innings and allowing five runs on five hits with two walks and one strikeout.  Oakland beat the Reds 10-9.

Cueto gave up all of his runs during the top of the second frame and was removed after he faced the inning's ninth batter. He blamed a mechanical hitch in his delivery for affecting his location.

"Everything was working well. I was just a little open," Cueto said through a translator. "I was up and a little open. I was trying, but I was unable to fix it. In the bullpen, everything was good. Everything was down."

The biggest hits were an opposite field two-run homer to right field by Derek Norris with one out and a two-out, two-run single lined to center field by Jed Lowrie.

Cueto, the expected Opening Day starter, threw 54 pitches vs. Oakland.

"Yes, I'm ready," Cueto said of his status for the regular season.

Cueto's likely final tuneup will come on Tuesday, when he is scheduled to pitch against the Cubs. This spring, he has a 7.02 ERA through five starts (16 2/3 innings).

"I'll just get ready for the next outing," Cueto said.

Todd Frazier led the Reds offense with a two-run homer.  Its the Reds and Dodgers Friday afternoon at 4:05pm. Coverage on