Meanwhile, leaving Slovenia with a 1-1 draw at Maribor gives Celtic the edge going into the second leg on Tuesday.
Ramsey suspended for 2nd leg after seeing red; Higuain salvage situation for Napoli.
Newly promoted side’s shock opening goal is shortlived after Blues step it up.
English season begins with a picture perfect start for FA Cup champions as they down EPL holders City 3-0.
Wenger admitted his side were not at full fitness for the traditional curtain-raiser to the season.
Wenger had delayed putting pen to paper on a new contract, despite stating publicly that he was planning to stay.
The Frenchman’s contract at the club expires in the close-season, but he has repeatedly assured both the club and their supporters that he would sign a new deal.
Ramsey scored winner to give Arsenal their 11th FA Cup, equalling the all-time record held by Man Utd.
The title race is realistically down to Manchester City and Liverpool now, after Chelsea’s latest stumble.
Arsenal will be assured a fourth-place finish if Everton lose at home to Manchester City on Saturday.
With two Premier League games remaining, Arsenal have 73 points, four clear of fifth-placed Everton.
Wenger fielded a team with average age of 29, with Olivier Giroud their youngest outfield player at 27.
Arsenal lost their hold on fourth place when Everton defeated Sunderland 1-0 on Saturday.
After extra time ended 1-1, Arsenal’s players scored all of their penalties and Lukasz Fabianski made two vital saves in a 4-2 shootout victory over Wigan.
Arsenal beat Wigan Athletic 4-2 on penalties and reach FA Cup final for first time in nine years.