After a rather quiet first-half of action at Anfield, the second-half provided plenty of drama.
Sadio Mane got the Reds off to a flying start as he put the Reds ahead on 59 minutes.
Shortly after, City were level through Phil Foden and felt Liverpool should've been down to 10 men.
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James Milner, on a booking, tripped Bernardo Silva but it wasn't enough to warrant a second booking.
VAR can't intervene on yellow card offences, even though a second amounts to a sending off.
Guardiola vented his frustration on the sidelines, furious with the decision and was subsequently booked for his complaints.
Shortly after, the 35-year-old was substituted for Joe Gomez to see out the closing stages of the match.
