Arsenal will closely monitor Declan Rice’s back injury as medics look to establish whether the problem is connected to other areas of his body.
Rice was substituted at half-time of Sunday’s north London Derby draw with Tottenham, complaining of discomfort in his back.
Initial tests have provided Arsenal with confidence that Rice will not be a long-term absentee - although the pain in the England international’s back is understood to have worsened so much on Sunday night that it was restricting his movement.
Rice will be unavailable for Wednesday’s Carabao Cup tie versus Brentford as he continues his recovery from the problem that has left him suffering back spasms.