The Blues go into Saturday's home game against West Ham two points behind Manchester United with a game in hand.
Arsenal have also played a game more but are on the same points as Chelsea following Carlo Ancelotti's side suffering a recent dip in form.
Battle cry: Drogba insists Chelsea cannot afford any more slip-ups
With 10 games to go, Drogba said: 'I am thinking about the big games coming up. We need to win all our games now because the pressure is there from United.
'This is the time of the season where we have to be on the best form. If we want to be champions again, then we know what we have to do.'
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