The Arsenal football side has rallied from 2-0 down to defeat hosts Ajax 3-2 on the opening day of the Amsterdam four-team tournament.
Inter Milan, under new coach Jose Mourinho, drew 0-0 with Sevilla in the day's other game.
Togo striker Emmanuel Adebayor scored twice for Arsenal and also laid on a goal for Dane Nicklas Bendtner.
The Londoners fell behind in the 33rd minute when a headed clearance from Kolo Toure was snapped up by Luis Suarez, who netted with a fierce volley.
Suarez then set up Ajax's second goal for the unmarked Klaas Jan Huntelaar two minutes later.
But Arsenal turned the tide with a three-goal blitz in 15 second-half minutes.
Arsenal next meet Sevilla while Ajax take on Inter.
