William Popp (footballer)

William Popp (ポープ・ウィリアム) is a Japanese professional footballer who plays as a goalkeeper for club Yokohama F. Marinos.

Career
On 30 December 2021, Popp officially transferred to J2 club Machida Zelvia for the 2022 season.

Popp was a key player in helping Machida Zelvia gain promotion to the J1 League in the 2023 season. In January 2024, it was announced that Popp would be joining Yokohama F. Marinos.

Personal life
Popp was born in Japan; his father is American while his mother is Japanese.

Club
Updated to the end of 2023 season.

Honours
Kawasaki Frontale
 * J1 League: 2017, 2018

Machida Zelvia
 * J2 League: 2023