We battled into the last eight of the Carabao Cup on a night of milestones in north London.
Stephan Lichtsteiner scored his first goal for the club, making a darting run into the box to divert a lofted pass from Matteo Guendouzi into the bottom corner.
Emile Smith Rowe scored his first senior goal at Emirates Stadium, converting from close range after former Arsenal academy goalkeeper Mark Howard had palmed away Carl Jenkinson’s effort.
A less desirable milestone: Guendouzi received his first red card in an Arsenal shirt after two bookable offences.
In another first, Julio Pleguezuelo made an accomplished debut at centre back after being given his chance by Unai Emery.