Health and fitness

Dr. Flynn: Why were the Red Sox so worried about J.D. Martinez’s foot?

(Billie Weiss/Boston Red Sox/Getty Images)

The Red Sox took their time evaluating J.D. Martinez’s medical file last week. We learned today that the reason for the delay in signing him was that they wanted to get a closer look at the right fielder’s foot. Martinez sprained the Lisfranc joint of the right foot fielding a ball in the outfield last March. He was treated in a non-weight-bearing cast and was on the disabled list from March 30th to May 12th last season.

Martinez went on to have a great season after the injury, with a .303 batting average and 45 home runs. So, why are the Red Sox so worried about his foot?