The Gunners will return to action on Friday evening when they take on Everton at the Emirates Stadium in North London in the Premier League.
Mikel Arteta’s side will head into the match against the Toffees on the back of a 1-1 draw with Fulham at home in the London derby.
Lacazette started the match, but the France international striker suffered a hamstring injury and had to be substituted in the 70th minute.
Arsenal have announced that the 29-year-old will not be available for the game against Everton, and neither will fellow striker Pierre-Emerick Aubameyang, who is recovering from malaria.
The Gunners stated on their official website about Lacazette: “Left hamstring. Alex has sustained a strain to his left hamstring and will be unavailable for Friday’s match against Everton. He will continue to work with the medical team and will be assessed ahead of next week’s matches.”
Arsenal wrote about Aubameyang: “Auba continues to recover after contracting malaria on international duty. Auba will be unavailable for Friday’s match against Everton, but is hoping to resume light training by the end of this week.”