From the News:
Right-hander Justin Verlander, who left Double-A Erie's game in the fourth inning Tuesday night with tightness in his pitching shoulder, was found to have a minor inflammation in the back of his shoulder caused by fatigue. There was no structural damage. He was diagnosed after flying to Detroit on Wednesday to be examined by team physician Dr. Kyle Anderson. Verlander was told to rest for 10-14 days before he resumes throwing. Verlander, who pitched 105 innings last year in college at Old Dominion, has thrown 130 this season among Class A Lakeland, Erie and two starts with the Tigers. He'll probably total 160-165 innings before the Tigers shut him down. "Jon Matlack is monitoring Verlander carefully," Tigers pitching coach Bob Cluck said, referring to the club's minor league pitching instructor. "Nothing is going to be left to chance."
Remember, there were rumblings that Verlander was overworked or at least tired coming out of Old Dominion. Caution in certainly the name of the game here, and I hope this is the end of the Verlander medical news for years to come.