Pierre-Emerick Aubameyang grabbed an Arsenal winner against an impressive Burnley for a 2-1 victory on Saturday.
French striker Alexandre Lacazette marked his return from injury as he impressively held off Erik Pieters and shot between the legs of goalkeeper Nick Pope to put the Gunners ahead after 13 minutes.
Ashley Barnes levelled the match two minutes before half-time, converting at close-range from Dwight McNeil's deflected pass for his third goal in two matches.
The hosts, who handed full debuts to £8m defender David Luiz and Real Madrid loanee Dani Ceballos, saw an immediate response ruled out for offside after Reiss Nelson appeared to have completed a slick passing move with a confident finish into the roof of the net.
But the impressive 23-year-old Ceballos recovered possession to set up Aubameyang for a powerful, low finish with 64 minutes played.