Arsenal: Koscielny, Elneny injury.
Sporting: Raphinha, Stuaro, injury to Viviana.
Arsenal won in all three rounds.
Sporting has also won two games, followed by Arsenal only.
Arsenal have won 7 of their last 8 home games.
In the last four European League matches, Arsenal scored 12 goals.
Sporting lost 2 wins 2 after 4 recent away matches.