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Where did that come from?

In a dreary match trundling its way toward a seemingly inevitable goalless draw, Galeno made the Estadio do Dragao erupt with a beautiful long-range curler. Although Arsenal goalkeeper David Raya's positioning will be questioned, there's no doubting the quality of the Brazilian winger's 94th-minute strike.

FC Porto will now take a 1-0 advantage to north London for the second leg on March 12.

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Wednesday's match was largely dross before Galeno's golazo.

Arsenal had scored 21 goals over their previous five matches in all competitions but failed to register a shot on target in Portugal. Mikel Arteta's only substitution - Jorginho replacing Leandro Trossard in the 74th minute - suggested the Spanish manager was fine with taking a draw into the reverse fixture.

Porto, meanwhile, only hit the target once through Evanilson before Galeno's immense effort. However, Galeno had the clearest cut chance of the match much earlier when he hit the post and then somehow sent the rebound wide with the goal gaping.

Everyone had to wait, and wait, for Galeno to spectacularly make amends deep into added time.