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.
David Nugent grabbed a hat-trick as Portsmouth secured a 6-1 success at non-league Eastleigh.
Younes Kaboul, Paris Cowan-Hall and Danijel Subotic were also on target for Paul Hart's side as they bagged a big victory at the Silverlake Stadium. Brett Williams scored for the hosts.
Derby boss Nigel Clough saw a young Rams side claim a narrow 3-2 success away to Matlock Town with Alex Prijovic finding the net 10 minutes from time.
Arnaud Mendy and Greg Mills were the other men on target for the visitors, with the home side twice restoring parity at the Causeway Stadium before Prijovic's winner.
Leeds had to settle for a 3-3 draw against Bradford Park Avenue as the UniBond League side hit back from 2-0 and 3-1 down.
Enoch Showunmi and Tom Elliott put the Whites in control early on, only for Chris Hall to pull one back shortly before the break at Horsfall Stadium.
Alan Sheehan restored Leeds' two-goal advantage from the penalty spot after Liam Darville was fouled, but further goals from Mark Bett and Hall secured a draw for the hosts.
Dagenham left it late to claim a 2-1 success away to Braintree with Tommy Tejan-Sie finding the back of the net in the 89th minute.
Wesley Thomas' shot from the edge of the box in the 14th minute put John Still's men ahead, only for their hosts to level with time running out.
