The opening night of the 2016/17 UEFA Champions League season took place around Europe on Tuesday night.
Edinson Cavani headed home Serge Aurier's cross in the opening minute before Alexis Sanchez fired home for the Gunners on 78 minutes to give Arsene Wenger's side a share of the spoils despite Unai Emery's men producing enough chances throughout.
In the other group match, Swiss champions FC Basel were held to a 1-1 draw by Bulgarian side Ludogorets Razgrad who took the lead through Jonathan Cafu on the stroke of half-time before Renato Steffen grabbed a leveller in the 79th minute.
Group B saw Arek Milik score a brace to give Napoli a 2-1 come-from-behind win at Dynamo Kyiv who scored first through Denys Harmash while Benfica were hurt by their own player, Talisca, who scored a sublime injury-time free-kick of Besiktas to force a 1-1 draw following Franco Cervi's first-half opener in Lisbon.
In England, Manchester City's home meeting with Borussia Monchengladbach was postponed until tomorrow night because of torrential rain.
Group D's matches had Bayern Munich turning it on in the second half to beat newcomers Rostov 5-0 at the Allianz Arena.
Groups E to H, plus the City v Gladbach fixture, will ask take place on Wednesday night.
2016/17 UEFA Champions League - group stage scores
Dynamo Kyiv (UKR): 1 (Denys Harmash 26')
Napoli (ITA): 2 (Arek Milik 36'/45+2')
Olympic Stadium, Kyiv, Ukraine - 35,137
Manchester City (ENG)
Borussia Mönchengladbach (GER)
*Match postponed until Wed, Sept 14*