He starred with two goals as Kawasaki Frontale won 3-1, putting themselves at a huge advantage ahead of the second leg.
The 29-year-old opened the scoring from 10 yards just after the half hour before heading home from close in with five minutes remaining to give his side a two-goal cushion ahead of the return fixture next month.
Also in the fray for the honour were Shanghai SIPG winger Wu Lei and Al Ain goalkeeper Khalid Eisa - both of whom were impressive in their respective teams’ games this past week.
The fans made their voice count as Yu Kobayashi received 60% of the votes while Wu Lei was backed by 30% of the voters. Eisa remained a distant third with just 10% votes to his name.
Congrats Kobayashi!