But the Belgian midfielder played through the pain to help his side, and the manager believes it is due to the player's determination to win trophies for the club.
"Kevin has an inflammation and we said maybe you stay back and don't play but he said he wanted to play," said Guardiola.
"He had a bit of pain but he wanted to play. It showed me a lot. He wants to win the Premier League. We want to follow him in this behaviour."