The Chelsea squad have been working hard at Cobham this week, building up to a huge London derby clash against Arsenal at the Emirates Stadium on Saturday lunchtime.
Head coach Sonia Bompastor has been preparing her players for this weekend's game, having beaten the Gunners at home and away in her first season in charge of the club.
A win this weekend would see Chelsea become the first team ever to beat Arsenal on four consecutive outings in the Women's Super League.
Here are some of our favourite images from this week's preparations...