Rangers winger Vaclav Cerny could reportedly face a ban for squirting water at Celtic fans on Sunday.
The Czech winger sprinted down the touchline towards the travelling supporters at Parkhead following Hamza Igamane's late winner.
As he did so, Cerny sprayed Celtic supporters sitting in the main stand with water from his bottle.
The police have since launched a probe into the incident and now Cerny could also be in trouble with the SFA.
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Indeed, RecordSport claims that the 27-year-old could face anywhere between a two to eight-game ban for his actions under SFA rules.
That's not all, though, as defender Dujon Sterling could also 'be in trouble' over his post-match Instagram activity. He branded Celtic Park a '****hole' online after his side's 3-2 victory.
Both clubs, Celtic and Rangers, are 'unlikely' to be punished for the activity of their supporters.
Rangers fans lit off pyrotechnics in the away end; only last month did the SPFL hit back at Celtic, the Ibrox club and Motherwell for doing so at Hampden.