| William Popp ポープ・ウィリアム | |
| Fullname: | William Popp |
| Birth Date: | 21 October 1994 |
| Birth Place: | Hino, Tokyo, Japan |
| Currentclub: | Yokohama F. Marinos |
| Clubnumber: | 1 |
| Position: | Goalkeeper |
| Youthyears1: | 2002–2006 |
| Youthclubs1: | Ohwada SC |
| Youthyears2: | 2007–2012 |
| Youthclubs2: | Tokyo Verdy |
| Years1: | 2013–2017 |
| Clubs1: | Tokyo Verdy |
| Caps1: | 1 |
| Goals1: | 0 |
| Years2: | 2016 |
| Clubs2: | → FC Gifu (loan) |
| Caps2: | 4 |
| Goals2: | 0 |
| Years3: | 2017 |
| Clubs3: | → Kawasaki Frontale (loan) |
| Caps3: | 0 |
| Goals3: | 0 |
| Years4: | 2018–2020 |
| Caps4: | 0 |
| Goals4: | 0 |
| Years5: | 2019 |
| Clubs5: | → Oita Trinita (loan) |
| Caps5: | 0 |
| Goals5: | 0 |
| Years6: | 2020 |
| Clubs6: | → Fagiano Okayama (loan) |
| Caps6: | 40 |
| Goals6: | 0 |
| Years7: | 2021 |
| Clubs7: | Oita Trinita |
| Caps7: | 14 |
| Goals7: | 0 |
| Years8: | 2022–2023 |
| Caps8: | 48 |
| Goals8: | 0 |
| Years9: | 2024– |
| Caps9: | 10 |
| Goals9: | 0 |
| Nationalyears1: | 2014 |
| Nationalteam1: | Japan U23 |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
| Club-Update: | 23:03, 19 November 2023 (UTC) |
is a Japanese professional footballer who plays as a goalkeeper for club Yokohama F. Marinos.
On 30 December 2021, Popp officially transferred to J2 club Machida Zelvia for the 2022 season.[1]
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.[2]
Popp was born in Japan; his father is American while his mother is Japanese.
Updated to the end of 2023 season.[3] [4] [5]
| Club performance | League | Cup | League Cup | Total | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Season | Club | League | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals | |
| Japan | League | Emperor's Cup | Emperor's Cup | Total | |||||||
| 2013 | Tokyo Verdy | J2 League | 0 | 0 | 0 | 0 | – | 0 | 0 | ||
| 2014 | 1 | 0 | 0 | 0 | – | 1 | 0 | ||||
| 2015 | 0 | 0 | 0 | 0 | – | 0 | 0 | ||||
| 2016 | FC Gifu | 4 | 0 | 0 | 0 | – | 4 | 0 | |||
| 2017 | Kawasaki Frontale | J1 League | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| 2018 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |||
| 2019 | Oita Trinita | 0 | 0 | 2 | 0 | 4 | 0 | 6 | 0 | ||
| 2020 | Fagiano Okayama | J2 League | 40 | 0 | 0 | 0 | 0 | 0 | 40 | 0 | |
| 2021 | Oita Trinita | J1 League | 14 | 0 | 1 | 0 | 4 | 0 | 19 | 0 | |
| 2022 | Machida Zelvia | J2 League | 17 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | |
| 2023 | 31 | 0 | 0 | 0 | 0 | 0 | 31 | 0 | |||
| Career total | 107 | 0 | 3 | 0 | 8 | 0 | 118 | 0 | |||
Kawasaki Frontale
Machida Zelvia