The defender already faces an extra game on the standard three-match ban for serious foul play because it was his second dismissal this season.
Initially, Keane was simply fined £5,000 and received a three-match ban.
On 17 August, he received a three-match international ban for his part in the incident.
But they are also concerned that the referee's report could result in more trouble for Hateley, possibly even a three-match ban.
If you cuff someone, you get a three-match ban.
He was given a three-match ban from all competitions.
He also received a three-match ban for anti-doping rules breaching, in late 2003.
This resulted in a standard three-match ban for violent conduct.
After the game, the club decided not to appeal his sending off, so he served a three-match ban ahead of the new season.
Although he wasn't sent off, the referee booked him, taking his season's points tally to 41 and resulting in a three-match ban.