Cancelo has enjoyed a strong start to the new season and Foden provided a glowing review following his latest performance.
"Joao is one of the best if not the best attacking full backs in world football right now, he is always adding goals and assists," the midfielder told mancity.com.
"If one of the attackers is having an off day we need someone coming up with the goals and assists and he is always there in the big moments in the big games.
"We know he has got that quality in front of goal and he is sensational."
Check out the entire interview with Phil Foden via the video at the top of this page.