Eduardo impressed on his first appearance of Arsenal's pre-season campaign as he bagged a brace to help the Gunners beat Hungarian outfit Szombathely 5-0.
Nicklas Bendtner, who has recently been linked with a move to AC Milan, also struck a double and he opened the scoring as he headed home Armand Traore's cross from the left flank.
Eduardo grabbed the next two goals and Bendtner beat Szombathely goalkeeper Daniel Rozsa with a low shot just before the break to make the score 4-0 to Arsenal.
Gunners boss Arsene Wenger made eight changes at the interval with Robin van Persie and Andrey Arshavin both being introduced to give the home side more to worry about.
It was van Persie who bagged the final goal of the game as he fired home a penalty after Bendtner had been bundled to the ground by Rozsa in the box. The Dutchman thought he had added a sixth with a header, but it was ruled out.
Szombathelyi had the chance to pull one back in the 83rd minute when William Gallas was adjudged to have felled Matel Skriba in the box, but Barbosa slipped in his run-up and sent his spot-kick past the post.