Arsenal will host Manchester United on Sunday in a blockbuster Premier League clash at the Emirates Stadium.
Arsenal defender Takehiro Tomiyasu is available for selection after serving a suspension, while Gabriel Jesus could also return following injury.
Partey is a major doubt after Ghana revealed Arsenal told them the midfielder “could be on the sidelines for a while” with an injury sustained in training.
However, United will be without Raphael Varane for a few weeks due to a knock.
New man United signings Sergio Reguillon and Jonny Evans are in line to make their debuts, while fellow summer arrival Rasmus Hojlund could also feature after recovering from injury.
Arsenal have an excellent home record against United in recent meetings, winning four and drawing one of their last five matches. The Gunners are chasing a third straight home victory against United for the first time since the late 1980s.
However, United will look to avoid losing their first two away matches of a league season for the first time since 1973-74.
Key players to watch include Bukayo Saka, who could become the first Arsenal player to score in four consecutive Premier League games against United. For the visitors, Marcus Rashford found the net in both matches against Arsenal last season.
This heavyweight clash could see plenty of goals, with the home side netting three in each of the last four league meetings between the teams.
That could see a return to a back four, with Ben White at right-back and Gabriel alongside William Saliba.
Gabriel Jesus is fit enough to start up front after his substitute appearance last time out, but Eddie Nketiah’s first England call-up after two goals in three games could see the Brazilian remain on the bench.
Mikel Arteta praised Nketiah and the competition he provides, saying his call-up was “for a reason” and that he “pushes everybody.”
Arsenal: Ramsdale; White, Saliba, Gabriel, Zinchenko; Rice, Havertz, Odegaard; Saka, Nketiah, Martinelli
Man United: Onana; Wan bissaka, Evans; Martinez, Dalot, Casemiro, Eriksen, Bruno fernandes, Rashford, Antony, Martial
Kick-off: 4:30pm BST, Sunday 3 September at Emirates Stadium