Liverpool should forfeit points from any match he's played in this season. aka they shouldn't advance in the Europa League.
Liverpool defender Mamadou Sakho is being investigated by UEFA for an alleged anti-doping allegation.
The 26-year-old France international centre-back has been omitted from the Liverpool team to face Newcastle United in Saturday's Premier League game at Anfield as a result, but he has not been suspended from playing by either his club or UEFA.
After discussions between the club's owners Fenway Sports Group, manager Jurgen Klopp and the player himself it was decided he should not play in the immediate future, even though he is still eligible for Premier League matches and Thursday's Europa League semi-final first leg in Villarreal.
The alleged offence relates to the Reds' Europa League second-leg tie at Manchester United on March 17 - which they drew 1-1 to progress 3-1 on aggregate - and is believed to concern a so-called 'fat-burning' substance.
Sakho is highly likely to request his B sample be tested, with the deadline for that request set for Tuesday.
A statement on Liverpool's official website read: "Yesterday, Friday 22nd April 2016, a formal communication was received from UEFA stating that they are investigating a possible anti-doping rule violation by Mamadou Sakho.
"The player will respond to UEFA on the matter.
"The player is currently not subject to any playing suspension. However, the club, in consultation with the player, has decided that while this process is followed the player will not be available for selection for matches.
"There will be no further comment at this time."