And Pep has faith that his little Spaniard is the one who will torment United the most.
Guardiola is quoted by the Daily Star as saying: "He is always a problem to play against.
"He is one of the most incredible players playing in the pocket, which the space in between players. He moves in those spaces.
"Few players can do it, and he is a master at that. He is enjoying it a lot. The fact he has played for so long in Premier League says everything.
"I love being alongside him every day."