Mike Trout last played for the Angels on July 12, when he left a game against the Astros with what was then diagnosed as back spasms. According to team trainer Mike Frostad, the condition is actually something far rarer, though it is unclear how long it may keep the superstar outfielder out of the team’s lineup.
When the team put him on the injured list a week later, the team cited rib cage inflammation. Per The Orange County Register, Frostad says the two issues are connected, as the “muscle spasms around the inflammation to protect it,” calling the condition “costovertebral dysfunction at T5.