Injury problems continue to mount for the Baltimore Orioles, who will have closer Zach Britton undergo an MRI on the ankle he tweaked in Saturday's loss to the Chicago White Sox and will send shortstop J.J. Hardy for a CT scan after he fouled a ball off his foot Sunday, reports MLB.com's Brittany Ghiroli.

X-rays on Britton's left ankle came back negative after he was lifted from Saturday's game at Camden Yards, and the 28-year-old left-hander was optimistic he wouldn't require a trip to the disabled list when he spoke with reporters Sunday.

"It feels pretty good compared to yesterday, but still some tenderness in there, and obviously I'm not walking great," Britton said. "So I think you've got to walk fine before I can even start pitching again. Hopefully, it's just a few days and maybe I can throw a (bullpen session) or at least run on (the ankle)."

The club appears to be more concerned about Hardy, though, and a team source fears the 33-year-old may have sustained a fracture in Sunday's 6-1 loss, wherein he was lifted in the fifth inning after fouling a pitch off his left foot.