Thierry Henry has backed Alexandre Lacazette to have a big impact at Arsenal this season, but believes Arsene Wenger will need all his strikers to perform if they're to have a chance of success.

Lacazette joined from Lyon this summer for a club-record fee, and is set to become Arsenal's No 1 striker in the upcoming Premier League campaign, ahead of fellow Frenchman Olivier Giroud.

But Henry believes that the different qualities that Lacazette and Giroud possess will be a major benefit to Arsenal, while Danny Welbeck, Theo Walcott and Alexis Sanchez will also all have big roles to play in attack.

"[Lacazette] has a different game to Giroud, which I think is good because you need different types of strikers," Henry told Sky Sports News.

"It's ironic when you think about it that Giroud starts for France and Lacazette is his sub, and it looks at club level like Giroud will be the sub. I don't know if that's ever happened in the history of the game!

"He did it in the French league and people might say it's a different league but, with due respect to Lyon, he'll also be with better players. I'm backing him to have a good season.

"But that rotation will be key. Sometimes you'll need Giroud or even [Alexis] Sanchez in the middle and sometimes you'll need [Danny] Welbeck or [Theo] Walcott, whoever will have an impact.

"You're waiting on Lacazette to have an impact with the fee, I know you shouldn't mention that, but that's how it is nowadays."

He added: "I'm a big fan of him. I saw him playing for a long time in the French league and in the youth team. He was always a talent that everyone was waiting for him to grow into, and to be fair he did, he's been scoring goals every season."

Arsenal kick off the season against Leicester at the Emirates Stadium live on Sky Sports Premier League and Sky Sports Main Event from 7pm on Friday night