Why did the Tigers pull Matt Manning over six innings into a no-hitter?

Tigers right-hander Matt Manning through 6 2/3 hitless innings yesterday, combining with Jason Foley and Alex Lange to throw the ninth no-hitter in franchise history. 

While the decision to pull a starter in the midst of a no-hitter is always a controversial one, manager A.J. Hinch shed additional light on the decision following Saturday’s game, noting to reporters (including Chris McCosky of The Detroit News) that Manning had…