 Stokes then picked up an injury which kept him out of action for five months until January 2013, when he returned as a sub in a league game against Dundee United.In December 2012, Stokes was disciplined by Celtic after he had attended a benefit event for Alan Ryan, a deceased member of the Real Irish Republican Army.Stokes scored his first goal of the 2012–13 season against Kilmarnock on 30 January, and scored twice against Dundee United two weeks later.