Hearts goalkeeper Zdenek Zlamal says he "feels sorry" for the supporter he claims "punched him in the face".
Footage appears to show Zlamal being struck by Hibernian fan, with Hibs boss Neil Lennon later hit by a coin in Wednesday's fiery Edinburgh derby.
A man has also been charged with assault for an alleged attack on an assistant referee.
"Everybody knows, who the losers are, you punched me in the face," Zlamal tweeted.
"I was ok - no big deal, but feel sorry for your personal tragedies that force you to behave like this.
"Our kids are watching the games and I'm sure they can recognize their real heroes."
- Lennon hit by coin in Edinburgh derby draw
- 'Will it take someone to get seriously injured?' - reaction
- Lennon 'furious' over coin attack
Police confirmed investigations into both incidents were continuing, with five people arrested at the match at Tynecastle, which ended in a goalless draw.
Fraser Wishart, Chief Executive of PFA Scotland, said: "It is like Groundhog Day as it seems we are continually having to discuss and address issues like this happening at football grounds across the country.
"After last night's incidents at Tynecastle, we stress again that any form of verbal abuse, violence or the throwing of objects at players and managers needs to be taken seriously and we trust that the authorities will take the appropriate action to ensure that this dangerous practice is stopped."
An SPFL statement added: "The Edinburgh derby is rightly regarded as one of the most passionate and exciting fixtures in the Scottish football calendar - but a number of incidents last night are not acceptable.
"We await the contents of the SPFL Match Delegate report and will work closely with both clubs and Police Scotland to identify those involved."