The France international concedes he hasn't been at his best.
Asked what he felt he was doing wrong, Sagna said: "You don't focus 100 per cent on the pitch - you miss something to push forward. You need somebody [else] to defend even better. When you are not at your best at this level, you feel it straight away on the pitch.
"You need a bit of everything to turn it around. When you don't perform as you used to, when you have been injured for so long, you need your confidence back and I was a bit low recently.
"I am just looking forward. I am a professional so I know it can happen but not for too long because everyone is waiting for me to perform well and I am looking forward to do it."