The 2:04:58 marathoner is looking to bounce back in a big way after a tough two-year stretch.
"[An American win] would be beyond words," says Meb Keflezighi.
Kenyan Moses Mosop, second at Boston in 2011, also announces withdrawal from race.
Spend some time going down. Your legs will thank you.
The injured marathoner believes he'll be back up to speed soon.
One of the world's greatest marathons came from truly humble beginnings — not so long ago.
Injury has forced Ryan Hall to pull out of the NYC Marathon. Can amateur runners learn anything from his struggles?
The running community has a lot to say about Ryan Hall's decision to pull out of the NYC Marathon.
The two-time Olympian is battling a hip injury.
She's a three-time Olympic Trials finalist and will debut in the half marathon there.