The Belgian international was electrifying on the left flank and opened the scoring in the 30th minute.
He took the ball and played a quick one-two with Rodri before angling a strike beyond the reach of Andrei Radu in the Bournemouth goal.
Doku was at the heart of everything good Man City were doing and, just two minutes later, he laid on an assist for Bernardo Silva.
The former Anderlecht star collected a pass in the right channel and showed dazzling feet to make space away from his marker and set up Silva.
Doku’s third goal involvement had a bit of fortune. He used his quick feet to create the separation and blasted a shot that took a deflection off Manuel Akanji.
City went into the break with a three-goal lead thanks to an incredible performance from their young winger.
However, he wasn’t done as he provided another assist for Phil Foden to finish in a spectacular showing and a fourth for Silva as City cruised to a 6-1 win.
Doku won six out of seven ground duels, completed four out of four dribbles, played five key passes, and recorded four assists and one goal.
Only Doku and Newcastle United defender Kieran Trippier have provided three or more assists in a Premier League match this season.
The 21-year-old becomes the first player since Paul Pogba against Leeds United in 2021 to provide four assists in a league game.
Man City manager Pep Guardiola will hope this performance will spark consistency from Doku.
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