Chelsea winger Florent Malouda believes Carlo Ancelotti's side need a perfect end of season run in if they are to mount a serious title challenge.
The Blues got the better of Birmingham on Wednesday night at Stamford Bridge, but the three-point haul still means the West Londoners are still six behind Manchester United.
It is the Red Devils' title to lose and Frenchman Malouda knows that the only way they will exert pressure on the leaders is if they can secure 15 points from a possible 15.
Chelsea started the campaign in top gear, although an alarming mid-season slump saw them slide down the table and Malouda believes the team are now back towards their best form.
"The title race is open for the three teams and even though Arsenal drew, we are only second because of the goal difference," he told the club's official website.
"We have no choice but to win every game to put pressure on Man United. They have to play at Arsenal but we have to play our part by winning our games.
"We have to stay humble, we know where we are coming from. We had difficult moments we had to overcome to come back to the second place and now we have to play at our best level.
"We are out of the Champions League now and we have to give everything until the end of the season."
Malouda had been in a personal slump of his own prior to Wednesday's brace against Blues, having gone 15 appearances for the club in all competitions with just one goal.
He scored four times from the club's opening three league games to start the season and he is backing himself to end the campaign in style.
"Mentally and physically I feel strong again," he continued. "When you score two goals in a game you feel you are back to your best form.
"Maybe it is because we have fewer games to play and we have more time to prepare, but I am working hard in training to prepare the best of my form and have the result in the games. It is great also to have the confidence of the players around me."