Alexandre Lacazette and Laurent Koscielny scored first-half goals as Arsenal bounced back from defeat at West Ham to beat Chelsea.
Arsenalreturned to winning ways and reignited their bid for a top-four place in the Premier Leaguewith an excellent 2-0 triumph over Chelsea.
Alexandre Lacazette crafted a wonderful 14th-minute opener as Maurizio Sarri's side, not for the first time this season, wilted under the pressure of a London derby.

Alexandre Lacazette and Laurent Koscielny scored first-half goals as Arsenal bounced back from defeat at West Ham to beat Chelsea.
Arsenalreturned to winning ways and reignited their bid for a top-four place in the Premier Leaguewith an excellent 2-0 triumph over Chelsea.
Alexandre Lacazette crafted a wonderful 14th-minute opener as Maurizio Sarri's side, not for the first time this season, wilted under the pressure of a London derby.