As the Red Sox continue gathering information on shortstop Trevor Story’s injured shoulder, there is now concern about the shoulder’s bone structure, manager Alex Cora said Tuesday morning.

“He’s going to get a second opinion on Friday, he’s going to go to LA to see Dr. (Neal) ElAttrache,” said Cora, referring to the famed orthopedic surgeon. “So we’ll know more over the weekend.”

Cora declined to speculate on whether Story could have one or more fractures, but he did acknowledge surgery could be on the table.

“There’s a possibility but we have to wait,” Cora said.

Story suffered the injury while making a diving stop on a hard hit ball Friday night in Anaheim, and immediately after landing on his shoulder it was apparent he was in a lot of pain. There is still no timetable on a potential return, but Story acknowledged it was a “significant injury” and he will likely be sidelined for a while.

Two Red Sox players who could be back on the field sooner rather than later are second baseman Vaughn Grissom (groin strain) and outfielder Rob Refsnyder (broken toe), both of whom were back at Fenway Park for the home opener. They will each begin rehab assignments this week, joining either the Worcester Red Sox or Portland Sea Dogs on their respective road trips.

As far as how the team plans to address shortstop while Story is out, Cora said they expect to utilize platoons at both middle infield positions. At shortstop David Hamilton will play against righties and Romy Gonzalez against lefties, and at second base Pablo Reyes will play against righties and Enmanuel Valdez against lefties.

Ceddanne Rafaela could factor into the equation at shortstop, and Cora said once Grissom is healthy they plan on reintroducing him to shortstop and giving him some innings at the position as well.