Apr 16, 2010 5:11 PM EST

Red Sox outfielders Jacoby Ellsbury and Mike Cameron could both be headed to the disabled list.

An initial diagnosis showed that Cameron is dealing with a kidney stone, according to his agent.

"I spoke to Cam last night," agent Mike Nicotera said. "Seems to be a kidney stone that he needs to pass. He's going to follow up with doctors in Boston today."

Ellsbury is scheduled to see a doctor in Boston on Friday as he continues to experience pain in the aftermath of his collision Sunday with third baseman Adrian Beltre.

Via ESPN