The French left-back has called upon his team-mates to forget about the Old Trafford rout in October, and is hopeful for a successful conclusion to the season come May
The victory at Old Trafford was one of the results of the season, as Sir Alex Ferguson's side were humbled by their city rivals thanks to goals from Mario Balotelli, Sergio Aguero, David Silva and Edin Dzeko.
The Mancunian giants are now set to meet again in the third round of the Cup at the Etihad Stadium, with the Frenchman insisting his side must not be complacent due to their victory back in October.
He told the club's official website: "Now, the Old Trafford game is finished.
"We are in the same position, in the FA Cup, not in the Champions League anymore and we are first and second in the Premier League.
"The 6-1 was a really sweet result for the players and the fans and of course it will be remembered for many years, maybe forever.
"As a player this doesn't mean anything, one game could be like this and another game could be the other way around so hopefully that's not going to be the case.
"We are going to try hard to win, even if it's 1-0 because it is still a win, you go through and you keep your rivals out of the competition so that's the deal.
"We have many more games to come so we have to take them one after the other and when the time comes, hopefully we can make something happen for City."