Arsenal sealed an unlikely top spot in Group A as they thrashed Basel 4-1 while Paris Saint-Germain drew 2-2 at home to Ludogorets in the UEFA Champions League on Tuesday.
The Gunners knew they needed to better PSG's result to qualify to the last 16 as group winners and Lucas Perez was the key contributor at St. Jakob-Park as he netted a hat-trick.
Besiktas fell to a 6-0 humiliation at Dynamo Kiev to squander their chance of progressing to the next round, with Napoli advancing as Group B winners ahead of Benfica following their 2-1 victory in Lisbon.