Mamadou Sakho set for lengthy ban after failing to challenge drug test results

Mamadou Sakho is facing a long ban from football
Mamadou Sakho is facing a long ban from football

Mamadou Sakho will face a long football ban after deciding not to challenge the results of his failed drugs test.

Liverpool defender Mamadou Sakho has decided not to challenge the results of his failed drugs test and will face a lengthy football ban, according to reports.

Press Association Sport understands that the France international opted not to request his B sample be tested ahead of Tuesday's deadline after his initial test revealed traces of a fat-burning substance.

The France international was left out of Saturday's draw with Newcastle after it emerged UEFA has flagged up an apparent anti-doping violation relating to a banned substance as a result of a test following the Europa League tie at Manchester United last month.

Liverpool have refused to comment on Sakho's situation as allegations relate to the player only and they are unlikely to change this stance until the defender and UEFA have resolved the matter.

Sakho was not on the team's flight on Wednesday lunchtime for their Europa League semi-final first leg in Villarreal as it is understood the club and the player have jointly agreed he will remain unavailable for selection during this process.

The Anfield club previously confirmed that they had been informed of the investigation by UEFA officials, as they released this statement on Saturday:

"Yesterday, Friday April 22 2016, a formal communication was received from UEFA stating that they are investigating a possible anti-doping rule violation by Mamadou Sakho," it read. "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."