Everton succumbed to their second home defeat of the season against a classy Chelsea outfit.
The Blues struggled in the absence of Morgan Schneiderlin, but went in level at half-time as Calvert-Lewin and Costa traded chances.
But the Champions-elect stepped it up after the interval and broke the deadlock thanks to Pedro’s stunning strike from range. Goals from Cahill and substitute Willian then compounded Everton’s misery in what was another poor performance against one of the league’s top sides.
Here’s how Koeman’s side rated against the table-toppers.
Maarten Stekelenburg- 3
Spilled an early shot in a sign of things to come. Culpable for Chelsea’s second, as his parried save hit Cahill and rolled in. Everton urgently need an upgrade in goal over the summer.
Mason Holgate- 5
Too easily beaten by Alonso on occasion, and wasn’t particularly productive in final third.
Phil Jagielka- 4
Struggled to cope with physicality of Costa, allowing the Spanish international the clearest chance of the first-half. Pulled apart by the visitors’ pace in the second period.
Ashley Williams- 5
Sloppy on the ball but dealt well with aerial threat posed by visitors. In other words, a typical Williams performance.
Leighton Baines- 5
Solid, if unspectacular. Rarely troubled by Moses but by same token, didn’t give the Nigerian much to worry about going the other way either. Now takes easy option on the ball.
Idrissa Gueye- 7
Handed the tough task of man-marking Eden Hazard, and was exceptional throughout at limiting the Belgian’s influence.
Tom Davies- 7
Dropped deeper in the absence of Schneiderlin and repaid Koeman’s faith with a combative performance that was full of intensity. One superbly-timed tackle on Costa left the Chelsea striker in a heap and had Goodison on its feet.
Ross Barkley- 4
Ineffective as the third member of the midfield trio. Ponderous in possession and unable to make an impact in either penalty area. Another no-show in a big game from someone who has otherwise been much improved in 2017.
Enner Valencia- 5
Deserving of a start following a string of promising cameos, but delivered a performance that lends credence to the belief that he’s better coming on as an impact substitute. Loads of effort but end product sometimes leaves a lot to be desired.
Dominic Calvert-Lewin- 6
Added a different dimension to an Everton attack that flattered to deceive against West Ham. Smart hold-up play was coupled with several surging runs. Unlucky not to score early on as his left-footed effort struck the post.
Romelu Lukaku- 4
Obviously struggles against three at the back. Isolated, but did drag a shot just wide in the first-half. Must do more in the big games.
Kevin Mirallas- N/A
Wasted one free-kick but otherwise pretty anonymous.
Arouna Kone- N/A
A bizarre introduction as Everton chased the game. Was never likely to be the answer.