Lacazette is up against four names in pursuit of a starting spot in Wenger’s team.
Arsenal legend Thierry Henry is backing Alexandre Lacazette to succeed in the Premier League.
The former France international, now football expert has labelled Lacazette - who sealed a move from Ligue 1 side Lyon to the Emirates this summer - as an 'excellent finisher' ahead of the new campaign which starts on Friday.
The Frenchman told Sky Sports: "I have been following Lacazette for a long time. He has been a talent since youth level. He has always been a guy that people have talked about. At Lyon he scored goal after goal after goal, so it is not surprising that he was hot property on the transfer market.
"We all know about his quality. He's an excellent finisher. He has a great mind, a great mentality, great commitment and great focus. When you buy players from abroad you don't know for sure how they will adapt, but I back Lacazette to be successful in the Premier League."
He continued: "It's a funny one for Olivier Giroud, because Lacazette is his back-up in the national team but it looks like he will be first choice at Arsenal. I don't know how many times it has happened in history that two players have switched roles like that between national team and club. I'm not saying it is right or wrong but it is an interesting dynamic.
"Arsene Wenger clearly sees things differently to the national team coach. Maybe he has different plans and different tactics. Lacazette is a different kind of striker to Giroud. He will stretch teams and go in behind the defence. It's good for Arsenal to have those options, and of course they also have Alexis Sanchez, Danny Welbeck and Theo Walcott.
"But I like the way Lacazette plays. Now it's up to him to show us what he can do for Arsenal."
Lacazette scored 37 goals in all competitions for Lyon last season, while Sanchez was Arsenal’s top scorer with 30 in total.