Jamie Carragher said Mamadou Sakho has let himself and Liverpool down

"I think he's let himself and his club down badly, because he was becoming a really important player for Liverpool."

Liverpool defender Mamadou Sakho has "let himself and his club down badly" with his failed drugs test, according to former Reds centre-back Jamie Carragher.

UEFA is currently investigating a possible anti-doping violation by Sakho, who failed a drugs test after Liverpool's Europa League second-leg tie at Manchester United last month.