The victory takes City 13 points clear at the top of the table and Pep Guardiola's side are still competing in all four major competitions, but Stones feels that the team need to remain grounded and focused.
He said, "We knew that we had to take it each game at a time, we knew our quality. We come about our business in our own way and we keep fighting.
"We set the bar so high in previous seasons and we want to get back there. We knew we had to fight, we have a bunch of fighters in the dressing room, everyone is playing games. It's been an incredible few months and there's still a few months left.
"We're in every competition to try and win them. That is our target, with this mentality and spirit and hopefully, you never know what can happen."