Saracens' Wales scrum-half Aled Davies is facing a ban after admitting a charge of dangerous tackling in Saturday's Premiership final loss.
The 29-year-old was yellow-carded in the 24th minute after television replays showed his shoulder made contact with the head of Leicester hooker Julian Montoya during a tackle.
The Tigers scored 12 of their 15 points during Davies' time in the sin-bin.
Freddie Burns' late drop-goal earned Leicester a 15-12 win at Twickenham.
An independent disciplinary panel will make a judgement on the offence at a hearing on a date yet to be determined.