Manchester City captain Vincent Kompany will be hoping to make a quick recovery after limping out of their Premier League opener against Newcastle at the Etihad stadium on Monday.
The centre-back suffered a reported groin injury and was forced off after 71 minutes during his side's 4-0 victory.
Kompany, 27, tweeted after the game: "Team was great. I felt great. Injury is a blow after all the hard work. I'll be back to that level in no time. Thanks for all the support."
And the injury will add to Manuel Pellegrini's defensive problems as City are currently lacking replacements with Matija Nastasic also out with an ankle injury, despite Pellegrini suggesting the Serb would be back in full training next week.
Micah Richards also missed the season opening game, with midfielder Javi Garcia having to play alongside Joleon Lescott in defence for the closing moments.
City's only other centre-back is Dedryck Boyata, but he lacks Premier League experience after spending time on loan at Bolton and FC Twente.
Pellegrini will now await the results of a scan on the Belgium international and said: "We will see what happened with the injury. The doctor will say how many days or weeks he will be injured.
"I can't tell you exactly now what happened with him but I think it is a serious injury - maybe for one or two weeks," admitted the Chilean.
The Sky Blues travel to Cardiff City this weekend and then host Hull City before the international break with fellow defender Pablo Zabelta saying it’s a tough blow to take.
"It is hard for the team to lose the captain. He is one of the most important players for the team but sometimes it happens in football.
"I wish him a speedy recovery and hopefully he can come back as soon as possible," he said.
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