Manager Arsene Wenger was delighted after his side triumphed in the FA Community Shield for a second season in a row
Arsenal needed just one goal to battle past Jose Mourinho's men with Alex Oxlade-Chamberlain the hero for the Gunners after scoring the winner with a powerful shot into the top corner.
And Wenger, who registered his first ever win over Jose Mourinho, says the win will inject confidence into his players ahead of next week's Premier League opener.
"It was an intense game," Wenger told reporters.
"We scored the first goal and after that you could see two teams playing with full concentration, full commitment.
"Maybe in some parts during the game we just tried to protect our lead but you could see that my team was really determined not to give a goal away. Sometimes we lost offensive potential by focusing on our defensive side, but every time we attacked we had chances.
"We had many chances today and the best chances were on our side. We won against a good team, we won another trophy so that's positive.
"He [Jack Wilshere] couldn't take part in the game today because of an ankle problem he sustained yesterday.
"It happened at the training ground. We don't think it's bad at all but I haven't been told whether it will be two days or five days. I don't know how long he will not be available for. It's a matter of days.
"[Karim Benzema?] No, nothing is happening. Honestly no. I don't know who brings that up. Is it Spanish media or English media? I don't know."