The Ghana international, who was handed a starting role, was replaced at halftime at the Etihad Stadium.
Arsenal boss Mikel Arteta revealed Partey will undergo an MRI scan to know the severity of his injury.
The Spaniard said in his post-match interview: ”He had some discomfort and it was getting worse and worse.
”He was uncomfortable to continue. (Saturday) or the day after he will have an MRI scan and see what he has.”
Partey has been Arsenal’s best player this season as the Gunners lead the English Premier League with five points.
Source: ghanasoccernet.com
