A man from Bolton was given a curfew order by magistrates after he threw a punch while attending an English Defence League rally in Blackburn.
A court was told how a man was being escorted out by stewards for heckling one the speakers when he was punched by a number of fellow supporters.
David Monks, aged 34, of Haydock Street, Bolton, pleaded guilty to using threatening behaviour before Blackburn magistrates and was made subject to an electronically monitored curfew between 8pm and 6am for 91 days.
Catherine Allan, prosecuting, said CCTV of the incident showed Monks throwing a punch but it did not show whether it connected.
“The other man was in fact punched unconscious but not necessarily by this defendant,” said Miss Allan.
Mr Michael Blacklidge, defending, said: “The irony is that this happened between EDL supporters who fell out amongst themselves.