Granted it could be nothing...
It could just be the Yankees being overly cautious with their $161 million investment. Besides, CC was trying to convince Girardi to let him in.
And pitchers can get hurt and come back in the same year. Lest we forget, Pedro went on the DL during his brilliant 1999 season and it didn't seem to derail him.
But I am sure even the most optimistic Yankee fan is thinking "Oh please don't have the inevitable health problems arrive NOW! Not with 6 more years left in the deal!"