Mikel Arteta has warned Arsenal to be on high alert for Manchester United's counter-attacking threat as the sides meet at Emirates Stadium on Sunday.
Pep Guardiola aimed strong criticism at match officials after Manchester City's 2-0 win over Wolves, despite the result ending a four-game winless league run and cutting Arsenal's lead at the top to four points.
Highly-rated Arsenal teenager Ethan Nwaneri will spend the rest of the season on loan at Marseille in a move designed to accelerate his development through regular first-team football.
Arsenal were left managing another fitness concern in January as Kai Havertz suffered a fresh setback in his recovery from a long-term knee injury.
Matthijs de Ligt will miss Manchester United's trip to London this weekend as the Red Devils prepare to face Arsenal in a crucial Premier League fixture scheduled for Sunday.
Arsenal secured a 3-1 victory over Inter Milan at the San Siro on Tuesday to confirm their place in the Champions League last 16 and maintain a perfect record in the league phase.