Arsenal beat Leicester City 4-3 at the Emirates in the first game of the 2017-18 Premier League season.
The Chile global has been linked with a move away from the club this summer with less than a year remaining on his current deal at the Emirates Stadium and could walk away for free at the end of the upcoming season.
Giroud had scored 12 Premier League goals in just 11 starts last season, but Lacazette was selected for Arsenal's opener and netted inside two minutes.
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"I love the man and the player", Wenger told Sky Sports.
Speaking to BBC Radio 5 live, Ornstein said: "It's very unlikely Arsenal will sign him now". He adapts slowly to the way we want to play. "We're working on other options but we're relaxed given our squad is 90 per cent complete", added Monchi in quotes reported on the Roma website. Giroud is in his prime, at the top of his game.
But the French coach knows he has work to do on his defence after Friday's performance in which Arsenal were found wanting at two set pieces that resulted in Leicester goals.
'For us it was a bit disappointing with the goals that we've let in and we shouldn't really be conceding in that way, but I think we showed great determination and great togetherness to get back into the game and we won it towards the end of the game. "One was a corner, one on build-up, one on a corner again", he said.