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2/20/2014 3:03 P.M. ET

Hamels on track for first bullpen session

CLEARWATER, Fla. -- Phillies left-hander Cole Hamels is scheduled to throw his first bullpen session of the spring Tuesday.

He is behind schedule after feeling discomfort in his left shoulder in November. The Phillies and Hamels maintain there is no reason for concern, and he expects to be back in the Phillies rotation sometime in April.

Hamels threw off flat ground Thursday morning at Carpenter Complex.

Sandberg giving Phillies plenty of work in camp

CLEARWATER, Fla. -- Players seem to be responding to Ryne Sandberg's workouts in camp.

They have come off the field winded, remarking about how hard they have been working. They seem to like it.

"It's a good solid workout," Sandberg said. "I like the fact that there's not a lot of action with guys looking for work afterward because as a group everybody is getting their work in. That says they're getting enough. I think it's a good sign guys aren't looking for extra things to do."

Phillies decline comment on NCAA investigation

CLEARWATER, Fla. -- Phillies general manager Ruben Amaro Jr. declined comment Thursday when asked about a Baseball America report that the organization turned in two college players to the NCAA for rules violations.

Amaro said he could not comment because it is an investigation.

Philadelphia drafted Oregon State left-hander Ben Wetzler in the fifth round and Washington State outfielder Jason Monda in the sixth round of the 2013 First-Year Player Draft. Neither signed. Baseball America reported the Phils told the NCAA in November the players violated its "no agent" rule.

College players are not allowed to hire agents before they sign, but it is widely known and accepted they use advisors to help them negotiate before the signing deadline, otherwise it would be a college athlete negotiating on his own.

The NCAA has made Wetzler ineligible to play. It recently reinstated Monda.

Amaro directed questions to Phillies assistant general manager Marti Wolever, who declined comment to Baseball America.

Worth noting

• Phillies first baseman Ryan Howard missed Thursday's workout for personal reasons.

• The Phillies have an intrasquad game Tuesday at Bright House Field. They open their Grapefruit League schedule Wednesday against the Blue Jays.

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