With just 10 minutes to go and the Blues two goals down in the Capital One Cup semifinal, tensions were high among the players as they desperately sought a pivotal goal.
After Demba Ba fired well wide, one of Swansea's ball boys was more than relaxed in his efforts to recover the ball and return it to Gerhard Tremmel. That's where Hazard comes in.
The Belgian raced over to hurry the proceedings, but the ball boy refused to comply.
What followed was an irate Belgian, pushed for time and eager to continue, pushing the ball boy over. When the ball boy still refused to relinquish the ball...you can view his reaction here:
The controversial moment has soured Swansea's advancing to the Capital One Cup final, but it's also drawn spectators straight down the middle as to whether it's an obvious red card or a horrendous decision by the referee.
Kicking us off is the official Chelsea Twitter account:
Has football gone mad? Hazard is sent off for kicking the ball under a ball boy attempting to smother the ball rather than return it. #CFC— Chelsea FC (@chelseafc) January 23, 2013
Norwegian journalist Thore Haugstad asks why the ball boy was gripping onto the ball for dear life:
Surely there should be some reaction towards the ball boy/Swansea too? Hazard wrong to kick, but you can't hold onto the ball like that.— Thore Haugstad (@Haugstad1006) January 23, 2013
A parody account popped up within minutes and, with shades of the Anfield cat, tweeted some fighting talk:
Jesus, hazard is wanting a 1v1 in the changing room.— Swansea Ball Boy (@SwanseaBallBoy) January 23, 2013
What's your opinion on the incident?
Hazard clearly kicked something, but was it the ball or the boy? Or are the correct question marks surrounding why the Belgian felt it necessary to kick anything at all?