There has been little information available today about Tigers slugger J.D. Martinez, who at last check underwent an MRI for a foot sprain. Now MLB.com’s Jason Beck tweets that Martinez will undergo a stress CT scan in Charlotte on Friday. Martinez rolled his ankle, as Anthony Fenech of the Detroit Free Press writes, while making a catch against the Marlins on Saturday. He underwent initial tests later in the weekend, but the Tigers have not yet released them. X-rays have indicated he didn’t break any bones, but ligament damage is a possibility.