Lou Williams will start in place of Young, the Hawks said.
Young exhausted every avenue to find a way to return to play, but a severe lack of mobility and significant degree of pain made it impossible, sources told ESPN.
Young will continue to rehab with hopes of a Game 5 return, according to sources.
With 36 seconds remaining in the third quarter of Game 3 on Sunday, Young inadvertently stepped on the right foot of referee Sean Wright. Young went back to the locker room briefly before returning to the game with just under nine minutes remaining.
Young, who had 32 points through the first three quarters of Sunday’s game, wasn’t as explosive when he returned to the game. An MRI on Monday revealed the bone bruise.
Read More News: Hawks’ Young (right foot) ruled out for Game 4