Arsenal made 10 changes for the visit of Brighton, with only William Saliba keeping his place from the win at Chelsea. Estonia international goalkeeper Karl Hein was handed his debut while there were rare starts for Marquinhos, Mohamed Elneny and Cedric Soares.
Brighton showed eight alterations from their win at Wolves as Danny Welbeck started against his former club and the likes of Levi Colwill and Tariq Lamptey also came in.
Despite a slow start, Arsenal broke the deadlock as Nketiah tucked away a fine finish. Brighton would have felt aggrieved at going behind but levelled from the penalty spot after Hein slipped over before jumping up and bursting off his line, bringing down Welbeck. The England international then dusted himself off to covert the resulting spot-kick and level matters.
Brighton turned things around at the Emirates Stadium just before the hour as Kaoru Mitoma, off the bench at the break, coolly finished past Hein.
The Seagulls added a third through Tariq Lamptey, the full-back surging forward and finishing well past a helpless Hein. A deserved win and Roberto De Zerbi’s third consecutive victory in all competitions.
Ben Hoggan was our man at the Emirates Stadium and here’s his player ratings...
13. Pascal Gross 7/10
Came on after half time in a straight swap for Caicedo. You could say he was employed in a deeper midfield role than usual, partnering Gilmour, but after his recent appearances at full-back, it’s not quite as accurate. Always seems to find space and always looks relaxed on the ball. 7/10 Photo: Mike Hewitt
14. Adam Webster - 7/10
Looked relatively comfortable after coming on for his long-term partner, Dunk. Clearly enjoys being proactive with the ball, often stepping through and taking more advanced positions on the pitch. 7/10 Photo: Ryan Pierse
15. Pervis Estupinan 6/10
Had a quiet game after coming on for Enciso, operating on the left flank. Didn’t have the impact he has had in recent weeks. 6/10 Photo: Ryan Pierse
16. Deniz Undav 6/10
He seems to cut a slightly frustrated figure at the moment, not receiving huge amounts of game time, coming on for Sarmineto in the 80th minute. Attempted to create with fluid passing and movement, but struggled to do it as effectively as some of his teammates. 6/10 Photo: Alex Burstow