Ghana midfielder Thomas Partey came off the bench to score for Arsenal in their emphatic home win over Nottingham Forest in the Premier League on Saturday.
Arsenal got their title challenge back on track by beating Nottingham Forest to secure a first win in five Premier League matches.
The Gunners' form has dipped in recent weeks amid a tough fixture schedule and a number of injuries, which meant Mikel Arteta's side were nine points behind leaders Liverpool before kick-off on Saturday.
Arsenal dominated from the outset at Emirates Stadium and Bukayo Saka gave them the lead after 15 minutes, exchanging passes with Martin Odegaard before beating two defenders and slamming a strike into the top corner.
Thomas Partey, who came on as a half-time substitute, doubled the hosts' lead when he curled in from 20 yards, before youngster Ethan Nwaneri added a third late on to secure the win.
Forest have been the surprise package of the season so far and came into this match with the same number of points (19) as the Gunners.
However, they struggled to get a foothold in the game and failed to muster a shot on target - with tame headers from Ryan Yates and Nicolas Dominguez their best opportunities.
Arsenal defender Jurrien Timber thought he had put the hosts in front when he tapped in from close range before Saka's opener, but Mikel Merino was offside in the build-up.
This match was Arteta's 250th in charge of Arsenal in all competitions - and he will hope victory sparks a run of form that will help his side close the gap on their rivals at the top.
Partey has now scored two goals in 11 Premier League appearances for Arsenal this season so far.
