The Football Association has launched an investigation into the crowd trouble at the game, which also saw bottles being thrown onto the pitch and offensive chanting from both sets of fans.
Prosecutors said Cawley, an unemployed laborer, told police officers he had consumed several cans of lager and three-quarters of a liter of vodka before he had arrived in Sheffield by train. He said he then drank as many as 10 pints of cider before the match started.
Judge Naomi Redhouse was told that Cawley, who has breached his football banning orders four times, only realized what he had done when other people told him and he saw himself on TV. He immediately made contact with police.
