He's a pitcher. It's 50/50 that his early 30s will be spent with his arm attached to his body. Yes, that's part of why he's getting money comparable to a post-prime outfielder instead of the 28 year old who has a 3 year ERA identical to Chris Sale, who as luck would have it also just signed, but for twice as much AAV. Only thing better than that would be having him on a series of one-year optional commitments