Nacho Monreal is back in training and could be available for the return match against AC Milan next Thursday, while Sead Kolasinac and Calum Chambers face late fitness test after sutsaining knocks in the victory over Gennaro Gattuso’s side.
“Sead Kolasinac has an ankle problem, but we don’t rule him out for Sunday yet,” Wenger said following the win at San Siro.
“Calum Chambers had cramps, because he played in a position which he is not used to for a centre back. He should be OK though. Hector Bellerin we don’t know yet, we have to see. He is not available for the weekend though.”
Alexandre Lacazette is on the comeback trail having had his first run on Thursday and will return to first team training after the upcoming international break.
Spanish midfielder Santi Cazorla remains a long-term absentee with an Achilles injury.
Arsenal have no players suspended for this game.
Arsenal potential starting line-up
Wenger will restore Petr Cech in goal for the match against the Hornets with Calum Chambers expected to continue in place of the injured Hector Bellerin at right-back.
Pierre-Emerick Aubameyang will start up front after he was cup tied for the win over Milan, while Granit Xhaka, Aaron Ramsey and Jack Wilshere could continue as the midfield trio.
Henrikh Mkhitaryan could be rested after playing 90 minutes in midweek with Alex Iwobi one of the most likely attacking options to fill in for him.
The injury doubts over Chambers and Kolasinac could see Rob Holding and Ainsley Maitland-Niles come in if the duo fail late fitness tests.
Watford team news
Watford boss Javi Gracia will have Kiko Femenia and Jose Holebas for the match in north London after both players returned to training.
The Hornets will be without Younes Kaboul, Nathaniel Chalobah, Tommie Hoban, Gerard Deulofeu and Christian Kabasele, but Tom Cleverley has returned to light training and could return in the next few weeks.
Having won their past two consecutive league games against Everton and West Brom, an improved Watford side sit in tenth place and will be hopeful of recording a positive result at Emirates Stadium.
Troy Deeney is Watford’s main attacking outlet while Richarlison and Holebas are also attacking threats in what is usually a 4-2-3-1 formation.
Abdoulaye Doucoure is the club’s top scorer with seven goals to his name so far this season.