"After that we get the efficiency".
Wenger confirmed the news and also revealed he has a number of other injury concerns ahead of the game on Friday night.
There were restless supporters who came late and missed the first two goals, went for a half-time hot dog and missed Welbeck's goal, and then abandoned ship before Ramsey and Giroud had their say.
"I can't tell you that at the moment", he said.
The 2017/18 Premier League season welcomes Huddersfield Town and Brighton & Hove Albion for their top flight debuts. The ball bounced out of the net but there was no doubt it had crossed the line and the celebrations began.
Pressed by fellow panellist and BBC Match of the Day presenter Gary Lineker whether he genuinely did not know until the latter stage of the season whether he knew he would be staying or not, Wenger said: "No. I had not decided to stay or to go".
For this match Leicester boss Craig Shakespeare could opt for a more defensive looking five-man midfield consisting of Marc Albrighton, Andy King, Wilfred Ndidi, Matty James and Demarai Gray.
"With Lacazette it's simple", he said when asked about the player's qualities. We're still learning. It's working for now.
Arsenal have needed a world class striker for at least four seasons now and finally they have their hands on clinical finisher Alexandre Lacazette.
If the answer is no you need to take a long, hard look at yourself.
A predictable Arsenal implosion followed, with Shinji Okazaki and Jamie Vardy putting Leicester in front. He adapts slowly to the way we want to play.
Referee Mike Dean (2nd R) was at the center of attention of failing to spot a handball by Mesut Ozil in the run up to Arsenal's third goal.
Potential Arsenal Starting Lineup (3-4-3): Cech, Holding, Mertesacker, Monreal, Bellerin, Kolašinac, Xhaka, Elneny, Iwobi, Welbeck, Lacazette.
Having seen his Arsenal side win just one of their last seven opening fixtures, Wenger was staring at another defeat but was ultimately left satisfied with the victory.
With less than a year remaining on Sanchez's current deal at the Emirates Stadium, the Chile international has been linked with a move away from the club and that he could even walk away for free at the end of the upcoming season.
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