Victor Moses and Chelsea have been hitting training hard this week under Maurizio Sarri and sharpening their reactions ahead of a Saturday evening showdown with London rivals Arsenal at Stamford Bridge.
It is set to be Sarri’s first home game in charge of his new club, and the Italian clearly wants his troops to be in razor-sharp condition for the clash.
Moses who retired from international football this week is pushing to be a starter under the new manager.
The Nigeria international had only 9 minutes of playing time in Chelsea 3-0 win over Huddersfield on Saturday.
The squad used motion sensors to monitor how quickly they could react to a trigger and the speed in which they could get away.
Players were paired up against each other for the drill, while Sarri and his coaching staff watched on.
Pace merchants Eden Hazard and Pedro did battle against one another, while Ross Barkley duelled with his midfield rival Mateo Kovacic.
Chelsea are bidding to build upon their opening day victory over Huddersfield, in which the world got an early glimpse into how ‘Sarri-ball’ could work.
Arsenal meanwhile will visit Stamford Bridge with a point to prove, after losing their opening weekend fixture to Manchester City.
Unai Emery’s first game in charge ultimately brought about disappointment, as a rampant City continued their fine form from last season’s title-winning heroics and steamrollered their way to a 2-0 win.