The 25-year-old French defender has been out of favour this season, although he was recalled for Thursday night's trip to Bordeaux.
"I will keep working because I am a Liverpool soldier and when Liverpool need me, I try to give my best," he told the official site.
“I work all the time 100 per cent, I try to stay professional and I give my best for this city and this club.
“It is important for me because every day when I wake up, I am very happy to come into the training ground with all the players.”