Sheffield United striker Billy Sharp was "assaulted" by a Nottingham Forest supporter after the Reds' play-off semi-final win at the City Ground.
Sharp was knocked to the ground while standing on the touchline after the match as Forest fans flooded onto the pitch following their team's emotional victory.
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Speaking after the match, Sheffield United boss Paul Heckingbottom insisted "something will be done" about the incident after the shocking scenes.
“He was assaulted on the blind side cowardly and knocked to the ground," Heckingbottom said of Sharp. "He has had stitches and is shook up. His safety was put at risk at a place of work.
“It is a prison sentence waiting to happen. We have the footage and something will be done about it.“