Arsenal beat Paris Saint-Germain 2-0 in their heavyweight Uefa Champions League duel on Tuesday.

The clash between Arsenal and French champions PSG in London was the big game of the day as the second round of matches in the new format of European football's elite club competition got underway.

The Gunners were worthy winners with Kai Havertz heading in from a Leandro Trossard cross to open the scoring on 20 minutes and Bukayo Saka doubling their lead before half-time, as his free-kick delivery from the right evaded everybody on its way in.

PSG saw Nuno Mendes strike the outside of the post from range in the first half while João Neves hit the woodwork after the break, but the visitors could not get back into the game.

It is a first win in the Champions League this season for Mikel Arteta's Arsenal, who drew 0-0 away to Atalanta on matchday one two weeks ago.

"Really, really happy with the performance," Arteta said. "The Champions League brings different demands, but I think we handled it really well." (AFP)