Nottingham Forest are "appalled" after a supporter "assaulted" Sheffield United striker Billy Sharp following the Championship playoff semi-final between the two teams on Tuesday.
Forest prevailed on penalties at the City Ground after the two teams were locked at 3-3 on aggregate after extra time.
The result prompted a pitch invasion from the delirious home support, which left a number of the Sheffield United players and staff looking on from the sideline, including Sharp. Footage then appears to show a man run towards the 36-year-old head first, knocking him to the ground.