Former captain Granit Xhaka could make his first Arsenal appearance since October in Thursday’s Europa League tie against Eintracht Frankfurt.
Xhaka was stripped of the captaincy after reacting angrily to jeers from Gunners fans while being substituted during a 2-2 draw with Crystal Palace.
“He’s in the group and has the possibility to play tomorrow,” said boss Unai Emery.
“I hope every supporter supports the team.”
He added: “Xhaka’s comeback is going to be important to us.”
The Swiss midfielder has not played for the club since he swore and gestured towards Arsenal fans while being substituted during the match against Palace on 27 October, although he did feature for Switzerland in November’s final round of European Championship qualifiers.