Manchester United defender Johnny Evans and Newcastle forward Papas Cisse may find themselves in trouble following a spitting incident last night.
TV images appeared to show Evans spitting towards Cisse during their 1-0 win while Cisse appeared to spit back, but it's not clear whether it was actually directed at the floor.
Ashley Young's goal for the reds keeps them fourth while Arsenal stay third after a 2-1 win away to QPR.
Liverpool have kept the pressure on Manchester United and Arsenal in their battle for a top four finish.
They're two points off the Champions League places following last night's 2-nil win over Burnley at Anfield.
Chelsea remain top of the standings after a 1-0 win over West Ham, while Man City are still five points behind the leaders after they were comfortable 2-0 winners over Leicester.
There were also wins for Stoke and Tottenham over Everton and Swansea respectively.
