Havertz had a similar injury last season, which kept him sidelined for several months. He suffered a hamstring injury during a training camp in Dubai in February and returned for the final two games of the campaign.

Arteta expressed his concerns about Havertz's injury, stating that it will take time for him to recover. However, he also mentioned that Havertz is progressing well and that the club is taking care of his knee to ensure a long-term recovery.

Arsenal will be without several key players, including Havertz, William Saliba, and Martin Odegaard, for their upcoming Carabao Cup match against Port Vale on Wednesday.