Chelsea midfielder Mason Mount believes the team is working on improving its set-piece threat.
The Blues have been impressive from corners and free kicks this term.
Kurt Zouma scored for them against Burnley in a 3-0 win in the Premier League at the weekend. His central defensive partner Thiago Silva is also an aerial threat.
"The gaffer said at half-time at 1-0 it's never done," Mount told reporters about the Burnley game.
"They put some pressure on us early in the second half. We knew it was going to come, we had to weather it and then getting that second goal from big Zou winning headers.
"We need that set-piece threat, we didn't really have it last season, and we have scored quite a few already this season.
"It's something we can continue to improve on."
