I spoke to both Ryan and Abdi.
Ryan dropped out about 10.2 miles in and Abdi soon after that.
Ryan had problems with his right hamstring. It has been a minor problem for him in training but something he thought he had taken care of. It kept getting up in the worse and he decided to drop out instead of risk damaging his career.
Ryan had been battling plantar fasciitis on his left foot and he thinks in compensating for that he started stressing the hamstring in training.
Ryan said it is the first race of his life he has dropped out of. He pointed out has his marathon career has been amazingly consistent and this was his worst marathon.
Abdi had problems with his right knee. It also was a minor problem that bothered him in training. He said the USOC doctors looked at him and determined he had water on his knee. Not a ton and he thought he'd be fine.
Abdi couldn't remember the last time he dropped out.
Race still going. About 20+ minutes left. Meb Keflezighi in 10th at 30k.