Newcastle United midfielder Cheick Tiote could miss the rest of the club's relegation run in after an alleged stamp on Liverpool's Daniel Sturridge went unpunished during Saturday's game at St James' Park.
The Ivory Coast international appeared to tread on Sturridge off the ball following a second-half challenge with Steven Taylor, an incident missed by referee Andre Marriner.
The FA will await Marriner's report before deeming whether the episode constitutes a violent conduct offence which could see retrospective action taken against Tiote and risk his involvement during the remainder of the season.
Tiote, who has made 21 league appearances this season, would miss all three of Newcastle's remaining games beginning with the trip to West Ham United, then away to Queens Park Rangers before the visit of Arsenal on the final of the season.
The Magpies require two wins from their remaining three games to guarantee their Premier league survival, 12 months on from their surprise fifth place finish last season.
Manager Alan Pardew signed an eight-year contract with the club in September 2012 but after one win in Newcastle's last six games, which culminated in the 6-0 demolition by Liverpool, the 51 year old has admitted concern over his long-term future in the north-east.
"It is out of my hands," Pardew said. "My job, until I am told otherwise, is to get this team as it can be for next week and that is what I will do.
"The players are very much aware of the situation that we are in and I don't think they need a lot of telling. We need to make sure when we start on Monday morning that we work really hard to show this city that we have the fight for it.
"There are a lot of people who will look at us after that (the Liverpool game) and think that we have a great chance of being relegated. We have to prove them wrong."
Pardew guided the Toon to Europa League qualification last season with a squad made up of players collated by chief scout Graham Carr, and after being named the LMA Manager of the Year, Pardew was rewarded with an eight-year contract.
But having qualified for this season's Europa League, the competition has worked as a distraction for Newcastle, who lost top scorer Demba Ba to Chelsea in January.
Moussa Sissoko and Mathieu Debuchy were among five French players signed during the January transfer window to offset the loss of Ba, but just five league wins have followed in 2013, while the club's away record is the second worst in the top flight.