This is from the Mayor’s Facebook page: 

A NOTE FROM MAYOR WARREN’S CAMPAIGN:

Earlier today, Mayor Warren was thrown from his bike after hitting a pothole in Stow, MA during a 60-mile training ride for the upcoming Pan-Mass Challenge. EMT’s responded to the scene and transported Mayor Warren to Emerson Hospital as a precaution. The mayor was released from the hospital a few hours later with minor injuries and orders to rest.

Mayor Warren looks forward to resuming his training for the Pan-Mass Challenge as soon as he is able.