Arsenal qualified for the Europa League knockout stage with a 0-0 draw against Sporting at The Emirates, although striker Danny Welbeck was carried off on a stretcher in the first half with a serious ankle injury.
A heavily changed Arsenal side were unable to break down a dogged Sporting team, who were reduced to 10 men in the 88th minute when defender Jeremy Mathieu fouled striker Pierre-Emerick Aubameyang as he raced towards the area.
However, the point was enough to guarantee the north London side a place in the last 32 atop Group E on 10 points, with Sporting behind them on seven. Vorskla Poltava lost 1-0 to FK Qarabag, with both teams on three points.
Arsenal forward Welbeck was taken off on a stretcher and given oxygen in the 25th minute after landing awkwardly when jumping for a header only hours after being named in the England squad for their next internationals.