Arsenal centre back William Saliba and winger Gabriel Martinelli will miss Wednesday's Carabao Cup fourth-round fixture against Brighton due to injuries, manager Mikel Arteta said on Tuesday.
France international Saliba was replaced by Cristhian Mosquera at half-time in Sunday's 1-0 Premier League win over Crystal Palace at the Emirates, while Brazilian Martinelli limped off the pitch after the final whistle.
Midfielder Declan Rice and defender Riccardo Calafiori also sustained knocks during the Palace game but have been deemed fit to feature against Brighton.