Arsenal youngster Eddie Nketiah scored a brace to hand the Gunners a comfortable victory over Fiorentina in a pre-season friendly.
The 20-year-old picked up the ball on the penalty spot and kept his composure before finishing smartly for his first. Nketiah's second was disputed by Fiorentina players but the goal stood. Joe Willock added a third.
Unai Emery's side have won all three of their pre-season fixtures in the United States including a win over Bayern Munich.
The Serie A side started on the front foot as Dusan Vlahovic sprinted at goal and forced Martinez into a save which was inches away from being tapped in.
In the 18th minute, the Gunners were ahead as Nketiah finished calmly under pressure.
Straight from the restart, Arsenal retained possession and drove at goal before having another shot at goal, which went just wide.
Martinez was asked to bail out his defence again just before the break after Riccardo Sottil found his way in behind the Arsenal backline but the angle seemed to go against him as his shot was saved.
Moments later Vlahovic had the chance to score but he poked his effort just wide of the post.
Nketiah added another midway through the second half but Fiorentina were furious as they believed there was a foul in the build up to the goal after one of their men was blocked off from getting the ball.
But the referee deemed the goal fair as the youngster tucked away an easy finish.