Arsenal's Thomas is expected to miss three rounds due to injury. The news comes as a disappointment for the club and its fans, who were hoping to see him back on the pitch soon.

Thomas has been one of Arsenal's key players this season, with his performances in defense helping the team to maintain their place at the top of the Premier League table. However, he has now suffered a setback with an injury that will keep him out of action for several weeks.

The injury could be particularly difficult for Arsenal, given the importance of their defensive unit. Thomas' absence means that the club may have to rely more heavily on other players, such as Sokratis Papastathopoulos and Shkodran Mustafi, to fill his role.

Despite the setback, there is still hope that Thomas will be able to return to full fitness and resume his playing duties in the near future. However, it remains to be seen how long he will be sidelined for and what impact this will have on Arsenal's chances of success this season.