Mamadou Sakho investigated over failed drugs test

Liverpool defender Mamadou Sakho is being investigated by Uefa after failing a drugs test.

Although the France international is not officially suspended, he will "not be available" for selection during the probe, the club have said.

BBC Radio 5 live reporter Ian Dennis said Sakho failed a test after the Europa League victory over Manchester United on 17 March.

It is thought Sakho tested positive for a type of fat burner.

The player has until Tuesday to provide a B sample.