The Red Sox placed Jacoby Ellsbury on the 15-day disabled list Saturday after the 28-year-old center fielder suffered a subluxation of his right shoulder in Friday’s Opening Day romp over the Rays at Fenway Park.

The Sox would not say how long Ellsbury would be out, but this kind of an injury typically requires 6-8 weeks.

In a statement, the team said only, “We are in the process of gathering further information and determining the treatment plan.’’

Manager Bobby Valentine said, “We’ll try to get him back as soon as possible with the best possible care known to man. I haven’t heard the word ‘surgery’ mentioned, but like I said, whatever the best possible care is, that’s what he’ll get.’’

Ellsbury, who was examined Friday night at Massachusetts General Hospital and underwent an MRI, met with Valentine before Saturday’s game.

“He obviously didn’t sleep much, and he’s obviously disappointed,’’ Valentine said.

With Carl Crawford’s return from offseason left wrist surgery now stymied by a strained left elbow, the Red Sox called up outfielder Che-Hsuan Lin from Pawtucket.

Cody Ross, who moved over from left field to center when Ellsbury was injured Friday, started Saturday in center, and shortstop Mike Aviles replaced Ellsbury at the top of the order. Aviles had a career .318 average in the leadoff spot going into the game.

Ellsbury sent out a message via Twitter Saturday morning, saying, “Thx for all the well wishes. Subluxed my right shoulder in yesterday’s game. No timetable set, working hard to get back as soon as possible.’’

A shoulder subluxation is defined as a temporary, partial dislocation of the shoulder joint, which is held into the socket of the shoulder blade by a group of ligaments.

Symptoms include a looseness in the joint, pain, and weakness or numbness in the shoulder or arm.