Uggggh, I really feel for him -- I was super excited to see how he does and had a feeling he was ready to pop a good one, kind of like Meb in NYC '09 and Boston '14 (I'm not saying I expected him to win, just to outperform expectations).
At risk of talking above my knowledge level, I feel like he's got such natural talent that he should really make it his top priority to simply GET ON THE START LINE IN ONE PIECE.
I mean, he's been training hard for Boston for how many months? Why is it that he always seems to get injured like a week or two before his big races? If I'm not mistaking, his plantar issues started shortly before the NYC marathon -- and then flared up during the race.
I hope he's being cautious and can turn around and run great in, say, Berlin, or even something sooner.