An incredible 90 minutes at Anfield ended with Liverpool beating Manchester City 3-2 and taking charge of the Premier League title race.
Philippe Coutinho's winning goal 12 minutes from time settled an enthralling contest that saw the Reds go 2-0 up through Raheem Sterling and Martin Skrtel's goals in the opening half hour, only for City to stage an emphatic second-half comeback.
David Silva's strike and a Glen Johnson own goal within five minutes of each other early in the second half brought the visitors back level, before Coutinho brilliantly fired Liverpool's winner after Vincent Kompany had sliced a clearance.
Not even a late red card for Jordan Henderson could sour Liverpool's day, as the Reds went seven points ahead of their opponents at the top of the table.
Here are six lessons learned from an astonishing afternoon.