NEW YORK -- Roy Halladay is scheduled to have his sore right shoulder examined Tuesday.

The Phillies are finalizing details of his visit, so it is unclear who will be looking at him and where. But there is concern in the organization about Halladay's health, considering his importance to the team and his stature in baseball.

"Anytime you have an injury, you have a concern, no matter who it is," Phillies assistant general manager Scott Proefrock said Monday morning at Citi Field. "We've been through these things before. [Vance] Worley, [Roy] Oswalt last year. We're fortunate we have Kyle [Kendrick] in the role he is in. Hopefully Vance is close to coming off the DL, so we'll be covered again."

Because the Phillies do not play Thursday, they do not need a fifth starter until June 6. It seems unlikely Halladay will be back in the rotation by then, which means they will need Worley to slide into that spot. If Worley is not ready to pitch by then, the Phillies would have to turn to Triple-A Lehigh Valley for a replacement. Options there include Dave Bush (4-3, 2.73 ERA in 9 starts), Tyler Cloyd (4-1, 2.15 ERA in six starts) and Scott Elarton (5-1, 2.98 ERA in nine starts).

"We've got experienced guys down there," Proefrock said. "Cloyd has thrown the ball well. We've got some options, but the option at this point, once Vance comes back, would be for a long man [for the bullpen]."

Another option down the road would be free agent Roy Oswalt, whom the Phillies watched throw recently.

"I don't think it's worth speculating until we know exactly what the issue is [with Halladay]," said Proefrock, when asked about Oswalt.

Worley feeling pain-free, hopefully near return

NEW YORK -- Vance Worley said he is feeling better, which is important considering Roy Halladay could be sidelined with a right shoulder injury.

Worley has been on the 15-day disabled list since May 12 because of inflammation in his right elbow. He has made 70 throws from up to 120 feet the last couple days, and said he has felt no pain or discomfort in his elbow.

"I haven't felt anything," Worley said. "The inflammation has gone down. It's made it to where I'm not really feeling the bone chip right now. Will it come back? I don't know. If it does ... I don't have a choice."

Asked if he feels extra pressure to return following Halladay's injury, Worley said, "It's tough. I don't know exactly what's going on there right now. But I'm trying to get back as fast as I can anyway. I don't want to say there's more pressure, but I definitely want to be back ASAP. Especially now with that going on."

Ruiz rests achy hamstring in series opener

NEW YORK -- The Phillies scratched Carlos Ruiz from Monday's lineup at Citi Field because of tightness in his right hamstring.

The Phillies said Ruiz tweaked the hamstring Sunday in St. Louis. They do not believe it is serious.

Brian Schneider replaced Ruiz behind the plate. Shane Victorino moved into the cleanup spot for the first time in his career.