Los Angeles Angels star Mike Trout is dealing with a "rare condition" in his back that he likely will have to manage "through the rest of his career," according to head athletic trainer Mike Frostad.
Trout was placed on the injured list on July 18 with rib cage inflammation, which is creating pain in his back, but the Angels initially expected the three-time MVP to return quickly.
Frostad told reporters, however, that the Angels now are concerned because Trout has been diagnosed with a costovertebral dysfunction at his T5 vertebrae.
"This is a pretty rare condition that he has right now in his back," Frostad said Wednesday.