Sheffield United boss Chris Wilder has reminded Oli McBurnie of his responsibilities but says he can relate to his player after the striker was spotted taunting Cardiff fans while watching Swansea.
McBurnie, the Blades' club record £20million signing from Swansea last summer, supports the Welsh club and was in the away end to roar on his old side in their goalless draw at rivals Cardiff on Sunday.
The 23-year-old, was picked up on camera appearing to make an obscene gesture towards Bluebirds fans during the match.
The Football Association acted when they saw the images but while McBurnie's behaviour was viewed dimly, the governing body felt it did not meet the threshold for an official misconduct charge on the basis of bringing the game into disrepute.
Instead, the FA wrote to Sheffield United requesting they remind McBurnie, who was also pictured watching Swansea at QPR earlier in the season, of his responsibilities.
"That is what we've done. I've spoken to him after we received a letter from the FA talking about Oli's future conduct, which is quite right," said Wilder.
"He didn't really go in camouflage disguise. I'll not mention the make of the jacket he had on, people have already spoken about it. We reminded him that he has a responsibility."