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02/28/09 1:34 PM EST

Werth scratched with sore shoulder

Phils right fielder felt discomfort during batting practice Friday

CLEARWATER, Fla. -- The Phillies scratched Jayson Werth from their lineup Saturday against the Rays at Bright House Field because of soreness behind his right shoulder.

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Werth said he tweaked the shoulder while taking batting practice Friday.

"So stupid," Werth said about the injury.

Werth, who had not played in the first three Grapefruit League games, could be back in the lineup Monday.

Werth had been held out of the lineup previously because he said he didn't have the proper time to ready himself in a shortened offseason, which he spends in Springfield, Ill.

"They were giving me a couple extra days to get my legs going, which I thought was kind of smart," Werth said. "I think the last two springs I've gotten 30 to 40 at-bats. I want twice that this spring. I'll be all right."

"This is a real long Spring Training," Phillies general manager Ruben Amaro Jr. said. "[Manager] Charlie [Manuel] probably could have forced him into the lineup, but there was no reason to do that. He'll get plenty of at-bats. I'm not concerned at all about Werth. None whatsoever. Why put a guy out there when it's not necessary for him to be out there at this time?"

Amaro pointed out that left-hander Cole Hamels also has been behind his teammates. He is scheduled to make his first Grapefruit League start on Wednesday against Team Canada.

"Just long as they're ready to play on April 5," Amaro said about Opening Day.

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