TAMPA — The Yankees’ sudden injury woes extend past their pitching staff.

Harrison Bader was undergoing testing on Thursday after experiencing left oblique discomfort from a swing he took in his last at-bat of Wednesday’s game, manager Aaron Boone said.

The Yankees said they would have more information on the center fielder’s status on Friday.

Bader was originally scheduled to play on Thursday against the Red Sox but the oblique issue changed those plans on a day when GM Brian Cashman announced that pitchers Carlos Rodon, Lou Trivino and Tommy Kahnle will all start the season on the injured list.

It’s possible that Bader could join them in that group depending on the results of Thursday’s testing.

“Any time it’s the side [it’s concerning],” Boone said. “So we’ll see. But yeah, you don’t like to see that.”

Asked who could fill in at center if Bader is forced to miss time, Boone mentioned Aaron Hicks, Rafael Ortega, Estevan Florial and Aaron Judge.

Ortega, a left-handed hitting non-roster invitee, started in center field for Bader on Thursday.