Arsenal defender Riccardo Calafiori injured his knee during Arsenal’s match against Leicester City currently.
The Italian left-back has been a regular in Arsenal’s last three starting lineups and looked to twist his knee after a clash with the Leicester striker, Odsonne Edouard.

After the match, Calafiori seemed to be in pain, and that led to doubts as to whether he would be able to feature in the Champions League match against PSG.
Mikel Arteta on Injury Concerns
Arsenal head coach Mikel Arteta also spoke about Riccardo Calafiori and another defender, Ben White, who has been struggling with a groin problem.
White has not featured in Arsenal’s last two games, and yet both players are in the running to face PSG.

When interviewed by the media, Arteta had to say the following: “Those are the two players (Calafiori and White) that are in contention, and we have to review today. We didn’t do any training session yesterday,” he said via Fabrizio Romano.
PSG Clash on the Horizon

As for Calafiori, Arteta continued: “He was a bit emotional after the game.” Let’s see how he is today.” With an urgent Champions League match against Paris Saint-Germain set for the 1st of October, Arteta expects the duo of defenders for the match at the emirate.