Manchester City face an anxious wait on Aymeric Laporte after the defender limped off injured during their Champions League last-16 game at Real Madrid.
With the game goalless, the 25-year-old went down injured in the 32nd minute and looked devastated as he walked off the field to be replaced by Fernandinho.
It was only Laporte's fourth game since returning from a lengthy injury with the Frenchman substituted as a precaution in Saturday's win at Leicester.
Although Pep Guardiola's side went on to win 2-1 at the Bernabeu, the City boss could not hide his disappointment over Laporte's latest setback.
"He's injured and it's a problem of being out injured for four or five months and then coming back still mending," Guardiola said.
"It's a pity because we dream to be with him until the end but unfortunately we have suffered a lot this season in this department.
"But I am sure with John (Stones), Eric (Garcia), Nick (Otamendi) and Fernandinho we'll go through."
City have not conceded a goal while Laporte has been back in action with former City striker Shaun Goater on Soccer Special describing it as "a huge blow".
"He's pulled a muscle. We didn't quite see how he pulled it but this is a huge blow because when he plays City can typically keep a clean sheet," Goater said.
"The game plan has been to stifle Real Madrid but with him out there could be chances which are created and taken by Real Madrid now..."