Trossard strike earns Arsenal victory at Everton

Arsenal beat Everton 1-0 at Goodison Park to move back to within two points of leaders Manchester City .

Gunners keeper David Raya made his Premier League debut for the Toffees .

Arsenal substitute Leandro Trossard broke the deadlock with a side-foot finish after 69 minutes .

Arsenal had Gabriel Martinelli's first half finish narrowly ruled out for offside.

Nathan Patterson replaces Ashley Young .

Kai Havertz replaces Fábio Vieira .

Takehiro Tomiyasu replaces Oleksandr Zinchenko .

James Garner replaces Abdoulaye Doucouré .

Jarrad Branthwaite ( Everton ) wins a free kick in the defensive half.