The Blues bossed possession and had 19 shots compared to United’s three, but couldn’t break the deadlock as the game eventually finished goalless.
“I’m pretty sure United came here to win the game because I’ve never met an opponent who wouldn’t want this result,” said Guardiola.
“We tried to have the ball and attack like we have tried to do all season. Today it was much harder against a team who haven’t lost in 23 - it was not easy but we tried. It’s one point and the fight keeps going.”
With the Reds seemingly set up to frustrate and defend in numbers, the Blues’ boss refused to criticise the visitors who are still very much in the hunt for a top four finish.
He said: “In my career I have come across many different styles. I am going to be respectable for my opponent’s style. We did absolutely everything to win and tonight it wasn’t enough.
“The better result, of course, would have been to win the game. We have five games left, three at home and two away and we have to keep fighting.
“Leicester and Crystal Palace will not be easy - you’ve seen what they have done against Arsenal and Liverpool.
“We are going to try the way we have played tonight - creating many chances to score goals and hopefully we can qualify for Champions League.”
The boss also gave an update on goalkeeper Claudio Bravo who had to be stretchered off on 79 minutes, adding: “I haven’t spoken to the doctor but it looks like the calf. We will know more tomorrow. He has an injury and looks like it could be a few games but we will have to see.”
The towering display of Vincent Kompany also received praise from the boss who said: “He’s a central defender and we speak about duels with the striker - Kompany usually wins these duels. That is why he is an outstanding defender. It is not easy against players like Rashford, who are so quick but he is a very intelligent player.”
