Craig Burley breaks down how Unai Emery adjusted his Arsenal side to nullify Maurizio Sarri's rigid tactics for Chelsea. Alexandre Lacazette and Laurent Koscielny scored to give Arsenal a massive London derby win over Chelsea to close the top-four gap to three points. Alexandre Lacazette and Laurent Koscielny scored to give Arsenal a massive London derby win over Chelsea to close the top-four gap to three points. Alexandre Lacazette and Laurent Koscielny scored to give Arsenal a massive London derby win over Chelsea to close the top-four gap to three points. LONDON -- Maurizio Sarri accused his Chelsea players of being "extremely difficult to motivate" in an astonishing public attack after their limp 2-0 loss against Arsenal at the Emirates Stadium. First-half goals from Alexandre Lacazette and Laurent Koscielny gave the Gunners a comfortable lead they never looked like relinquishing against a stale Chelsea side who failed to register a shot on target until the 82nd minute. Taking the unusual decision to conduct his post-match news conference in...