"After 15 minutes I said we'd be champions, after what happened and we reacted," Guardiola told Sky Sports News.
"These guys are fantastic and awesome. What's happened in the last week is so unfair. We have a second chance against Swansea and we're going to try and be champions.
"Today, we've done it many many times and that's why we're in the position we are. I am so so glad to be here and be part of the club. It was so good. The performance was so good."
City could win the title as early as tomorrow should Manchester United suffer defeat when they welcome West Bromwich Albion to Old Trafford.