The Arsenal youngster will play his football away from the Emirates Stadium for a second successive season, having headed out on loan to Borussia Dortmund after spending last year at Marseille.
Arsenal boss Mikel Arteta could still make changes to his squad in the transfer market after deadline day
Arsenal have left Liverpool, Manchester City and Manchester United behind after winning the Premier League title and reaching the Champions League final last season
The transfer window may have closed in England but Arsenal can still acquire a number of free agents to replace the outgoing Gabriel Martinelli
Premier League champions Arsenal strengthened their squad during the summer, but they also failed to sign a ceiling-raiser in attack - or more specifically another left-winger
Arsenal are set to complete another transfer after deadline day with a medical booked and a club record fee agreed
Jamie Carragher has named Manchester City as the only team who can stop Arsenal winning the Premier League title, after the signing of Enzo Fernandez from Chelsea
Arsenal decided to keep their power dry on transfer deadline day as there were no incomings, only departures, at the Emirates Stadium
Arsenal were set to get a major transfer windfall from a former player moving back to the Premier League, only for the proposed move to collapse
It was a largely uneventful deadline day for Arsenal, in line with a summer which saw the Gunners miss out on two marquee signings in Vinicius Junior and Julian Alvarez
Richard Garlick has spoken about how Arsenal conduct transfer business as the summer window slams shut
football.london breaks down Arsenal’s summer transfer window, the approach, the positives, the mistakes and the decisions that could prove costly
Two more players that were in Arsenal's ranks when Mikel Arteta took charge have departed the club
All the Arsenal incomings and outgoings as the curtain drops on the summer transfer window.
After spending over £400million this summer, Manchester City have added pressure to their title challenge against Arsenal
football.london rounds up three potential options Arsenal either missed out on or could have considered to help solve their ongoing left-wing drama
Our Seeing Red podcast hosts Tom Canton and John Cross give their thoughts on transfer deadline day and who they’re tipping the Gunners to move for in the future
Arsenal don't appear to be on course to bring in another left-winger or attacker late in the window but further down the line, there will be better options to pick from
Arsenal are taking a sizeable risk this summer transfer window should they fail to sign an attacker before the deadline
Gabriel Jesus, who had entered the final 12 months of his contract with Arsenal, has swapped the Emirates Stadium for the Camp Nou on deadline day.
Arsenal are heavily interested in Atletico Madrid striker Julian Alvarez but the Argentinian has his reasons why he doesn't want the move
Arsenal were exploring a late swoop for Lyon winger Malick Fofana but the Belgian is now expected to join Sunderland or Crystal Palace
Ethan Nwaneri will be able to play against Arsenal in the Champions League with any hope of an agreement to prevent such an instance with Borussia Dortmund blocked by UEFA rules
Arsenal have made a number of big signings on deadline day but not all of those transfers have been successes
Arsenal have come to an agreement with Barcelona for Gabriel Jesus to complete a move on transfer deadline day and a late change has been made to his contract