Cesar Azpilicueta says Chelsea must improve their defending at set-pieces and against the counter-attack.

The Blues' poor form at home continued on Saturday when Bournemouth clinched an unlikely 1-0 victory.

Speaking about the loss, the Spaniard said: "We are facing teams with a defensive set up who are counter-attack teams, and sometimes we have conceded counter-attacks or from set-plays, and in set-plays every team has the same chance.

"We have to be more effective. That is the problem we have had in a few games, in either box we were not good enough attacking and defending.

"We have to make sure we are ready, because there is a big game coming up, a derby against Tottenham next Sunday and we have to be ready for it.

"Now is time to think, to see what we didn't do well, and go with everything on Sunday because we need the points."