Sporting v Arsenal: Confirmed team news
David Raya starts in goal for Arsenal after not featuring in the past two cup games.
Declan Rice and Leandro Trossard also return to the starting line-up after missing the FA Cup loss at Southampton with injury.
Viktor Gyokeres leads the line against his former club. The Sweden international scored 97 goals in 102 games during his time at Sporting.
Arsenal starting XI: Raya, White, Saliba, Gabriel, Calafiori, Zubimendi, Rice, Odegaard, Trossard, Madueke, Gyokeres.
Subs: Arrizabalaga, Ranson, Mosquera, Lewis-Skelly, Salmon, Norgaard, Havertz, Martinelli, Dowman, Jesus.
Sporting starting XI: Rui Silva, Morita, Pedro Goncalves, Catamo, Francisco Trincao, Araujo, Fresneda, Goncalo Inacio, Diomande, Joao Simoes, Suarez.
Subs: Joao Virginia, Faye, Callai, Debast, Vagiannidis, Kochorasvili, Daniel Braganca, Flavio Goncalves, Eduardo Quaresma, Rafael Nel, Ricardo Mangas.