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02/19/11 7:45 PM EST

Butler, Ka'aihue will shuttle between first, DH

SURPRISE, Ariz. -- It's likely to be a split situation between Billy Butler and Kila Ka'aihue at first base and designated hitter, according to manager Ned Yost.

It appears that Ka'aihue, after nine years of clouting home runs mostly in the Minors, will open the season in the Majors for the first time.

"He'll compete with Billy for playing time at first base. We'll see. A priority for us is our defense this year, and Billy's worked hard at it," Yost said.

"There'll be competition among the two. It won't be for playing time, [because] the other will probably be DH-ing. We'll let 'em get out there and get after it, and see what happens. But I don't imagine one of them getting the majority of time at first base where one's just a solid DH. So we'll be able to tell through the spring in the next six weeks."

Rain doesn't dampen Royals' spirits in workout

SURPRISE, Ariz. -- Rain doused the normally sunny Surprise training complex on Saturday, but Royals manager Ned Yost declared the team's first official full-squad workout a success, nonetheless.

The players got their work done in the four covered batting cages.

"It was a good day, we got through everything we needed to do," Yost said. "The most important thing was that we got through batting practice with our pitchers. We had 70 minutes of batting practice -- 14 guys threw 10 minutes apiece, and the hitters got to see some live BP. But with the quality of our pitchers, that's not exactly a fun thing right now. But at least we got it done."

Rain began falling almost precisely at the planned 1 p.m. MT starting time. But by the time the workout ended shortly before 4 o'clock, the rain had stopped and the temperature was 52 degrees. Dark clouds hung tight over the White Tank Mountains, but the sun made some feint appearances through an occasional opening.

All 65 players were in camp, as scheduled. Although this was the first day that the infielders and outfielders were required to work out, most of them had started several days ago.

"It just shows you that guys are ready to get going. We're not easing into things, we're ready to get out there and play together," first baseman Billy Butler said.

Sunday's workout is scheduled for 10 a.m. MT, with a 50 percent chance of rain and a high of 54 degrees.

"We've been here for the last week outside. They've been getting enough ground balls and fly balls, and running the bases and batting practice," Yost said. "So a rainy day didn't hurt us."

Yost: Carroll edging into outfield picture

SURPRISE, Ariz. -- Brett Carroll, the only non-roster outfielder in the Royals' camp, is nudging his way into the already crowded outfield picture by impressing manager Ned Yost.

"He's like [Jeff] Francoeur in a lot of ways, in that he plays the game hard, he plays the game right, he's got a winner's makeup and a winner's attitude. Offensively has been his knock a little bit, but he has tons of power, plays hard," Yost said.

Carroll, 28, played parts of the last four seasons with the Florida Marlins. In 173 big league games, he's hit .205 with eight homers. His biggest year in the Minors was 2007, when, for two teams, he had 22 homers, 82 RBIs and a .304 average.

A right-handed hitter, Carroll signed originally as an infielder.

"He looks good at third base taking ground balls, too," Yost said.

Dick Kaegel is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.