Arsenal midfielder Lucas Torreira has travelled with the squad for Thursday's Europa League quarter-final second leg at Napoli.
The Gunners head to Italy with a 2-0 lead after outplaying their Serie A opponents in the first leg at the Emirates Stadium a week ago.
Torreira came off at half-time in Monday's Premier League win over Watford with a tight groin but is in contention to start in the San Paolo Stadium.
Loanee Denis Suarez (groin) has stayed behind in London while long-term absentees Danny Welbeck (ankle), Rob Holding and Hector Bellerin (both knee) are still missing.
Napoli are set to be without Amadou Diawara, while Raul Albiol is a doubt depite returning to training ahead of the second leg meeting with UNai Emery's men.
Predicted line-ups
Napoli XI: Meret, Hysaj, Koulibaly, Maksimovic, Rui, Callejon, Allan, Zielinski, Ruiz, Milik, Insigne
Arsenal XI: Cech, Sokratis, Koscielny, Monreal, Maitland-Niles, Xhaka, Torreira, Kolasinac, Ramsey, Ozil, Lacazette
