Did Daiki Iwamasa play professional football before he became a manager?
No, Yes
Answer
Yes, Daiki Iwamasa played professional football before he became a manager. He played as a defender for J1 League club Nagoya Grampus, Yokohama F. Marinos and Urawa Red Diamonds.
Unleashing Daiki Iwamasa's Football Brilliance: How Well Do You Know The Japanese Ace?