Arsenal record signing Alexandre Lacazette will miss the upcoming visit of Manchester United on Saturday (2 December) after suffering a groin injury during the 5-0 victory over Huddersfield Town on Wednesday night.
The France international striker scored the opener in the third minute of the game to help the Gunners maintain their perfect home record in the Premier League just before the upcoming clash with Jose Mourinho's side.
However, he was forced off and replaced by Olivier Giroud at half-time after picking up an injury.
Arsene Wenger confirmed the worst fears for Arsenal fans after the game, ruling the summer signing out of the visit of United.
"Lacazette has a groin problem and will certainly be out for Saturday's game [agains United]," the Arsenal boss confirmed following the victory over Huddersfield.
Wenger has however received some positive news from the clash with Mesut Ozil making an impressive return to action after missing the previous win over Burnley due to illness.
The former Real Madrid star also scored a goal and provided two assists as Arsenal consolidated their place in the top four before the visit of United, being two points ahead of Liverpool and one behind Chelsea.
Wenger hailed his return to action after claiming that the German is showing his fighting spirit in the opening part of the season due to his good fitness.
"The fact that he is fit, the fact I believe that you come often to games nobody has to convince you that Ozil is a great player, but he added something that people wanted to see from him as well, against Spurs and tonight, that he can fight and come back and win the ball back. Once people see that they are behind you, everybody knows in the stadium that he is a good football player and at the moment he shows that he can fight," Wenger added.
"Our job is to encourage people to fight of course, but I think that he always covered the distances in the game, but he is at an age where he is mature and he understands what is important, what is less important."