Per the Flyers website: Flyers.NHL.com
Flyers beat writers Sam Carchidi and Tim Panaccio have confirmed it as well.
Coburn will miss 4 weeks with foot injury. #Flyers— Sam Carchidi (@BroadStBull) January 13, 2015
Colaiacovo will replace Coburn for the time being ... his 26 consecutive games as a healthy scratch are about to end— Tim Panaccio (@tpanotchCSN) January 13, 2015
Carlo Colaiacovo will replace Coburn for now.