Speaking to Match of the Day after the match, Guardiola defended his decision to start Khusanov and emphasised the learning opportunities such moments provide.
"It is not easy for him," he said. "He trains once and then to play against Jackson and Cole and Madueke and Sancho. It is a process when you buy a player this young. He will learn. These kinds of actions are the best lesson you can take."
When asked if he had addressed Khusanov’s error directly, Guardiola revealed that language barriers prevented immediate communication.
"He doesn't speak English so I didn't speak to him," he told Sky Sports. "He'll be fine. He only made one or two training sessions. I didn't want to push John [Stones] returning from injury - with Wednesday's game [against Club Brugge]. The players were together. That was massively important. Any player can make a mistake. The fans always support the new players. He's so young. He will learn."