In the 44th minute, Simon Francis swung in a flawless cross for Callum Wilson to rise and head home. I think we have just two less points than this time a year ago, and what we have done is quite similar, but the contenders are much better.
Guardiola has also welcomed the announcement that European governing body UEFA will introduce VAR for the knockout stages of the Champions League this season.
It was a landmark moment for former Barcelona and Bayern Munich boss Guardiola, who said: "My 400th win as a manager?"
Ilkay Gundogan put the result beyond doubt when the German finished a fine move involving Bernardo Silva and Sane in the 79th minute.
"In this kind of situation it is the player himself who decides if he feels good".
It was no surprise to see Raheem Sterling on the scoresheet for Man City.
Crystal Palace earned their first home win of the season as they beat Burnley 2-0 while Brighton fought back to beat 10-man Huddersfield 2-1. "They played long balls, attacked the channels".
"The last 20 minutes [of the first half] we were flat, we had no rhythm that we need but that is normal, it is so tough", he told a news conference. They were taller than us and stronger than us.
The Reds fell behind to an early Stuart Armstrong strike and when Cedric doubled Southampton's lead from an excellent free-kick the signs looked ominous.
This term, the Blues have again been in exceptional form, having won 12 and drawn two of our 14 league games to date.
That should have been United's cue to press home their momentum after the break.
United suddenly had a spring in their step and Ander Herrera equalised in the 39th minute when he met Rashford's low cross with a clever back-heeled effort from close-range.
"We played one weak half against Liverpool in Champions League and that was that one weak half too many".
Sterling has recently been rewarded with a new five-year contract, worth a reported £300,000 ($382,000) a week, by the Premier League leaders and is now enjoying the best form of his career.
Jamie Vardy's 12th-minute penalty, after the striker himself was brought down, gave Leicester the lead. Felipe Anderson added a third for West Ham in stoppage time, ensuring they move up to 13th in the table, while Rafa Benitez's side drop to 14th.