At a glance
Birmingham City U21 hubCareer snapshot
2Clubs played for
21/22Debut season
0Goals per match
Birmingham City U21Top club · 3 apps
Position rank25/26
#1106Goals rank
#1110Assists rank
0Season goals
0Season assists
Among 1,246 Goalkeepers with 200+ minutes
3Appearances
0Goals
0Assists
0Yellow cards
0Red cards
3Full matches (90′)
| Full name | William O'Sullivan |
|---|---|
| Date of birth | 2005-12-17 (20 yrs) |
| Place of birth | , |
| Citizenship |  England |
| Position | Goalkeeper |
| Foot | |
| Height | 0.00 m |
| Current club | Birmingham City U21 |
| Joined | 2024-07-01 |
| Contract expires | 2026-06-30 |
Jul 2025
25/26 - Birmingham City U21
3 matches · 0 G · 0 A · across 2 competitions
Jul 2024
24/25 - Birmingham City U21
0 matches · 0 G · 0 A · across 1 competition
Jul 2024
Transfer: Birmingham U18 → Birmingham U21
24/25 · Transfer
Jul 2023
Transfer: Birmingham Aca. → Birmingham U18
23/24 · Transfer
Jul 2021
21/22 - Birmingham City U18
0 matches · 0 G · 0 A · across 1 competition
Percentile rank vs 388 other Goalkeepers with ≥500 minutes in 25/26. Higher = better (except cards, where lower = better, inverted automatically).
Goals0 total · 0.00/90
Assists0 total · 0.00/90
G+A0 total · 0.00/90
Yellow cards0 total · 0.00/90
Clean sheets1 total · 1.00/90
Minutes played by club
Birmingham City U21
100.0%
Birmingham City U18
0.0%
| Club | Seasons | First | Last | Matches | Goals | Assists | Minutes |
|---|---|---|---|---|---|---|---|
| Birmingham City U21 | 2 | 24/25 | 25/26 | 3 | 0 | 0 | 270 |
| Birmingham City U18 | 1 | 21/22 | 21/22 | 0 | 0 | 0 | 0 |
Career trajectory, goals, assists & market value
No trajectory data
Goals by season
Assists by season
| Season | Competition | Club | Matches | Goals | Assists | YC | RC | Minutes |
|---|---|---|---|---|---|---|---|---|
| 25/26 | Premier League 2 | Birmingham City U21 | 2 | 0 | 0 | 0 | 0 | 180 |
| 25/26 | Premier League Cup | Birmingham City U21 | 1 | 0 | 0 | 0 | 0 | 90 |
| 24/25 | Premier League Cup | Birmingham City U21 | 0 | 0 | 0 | 0 | 0 | 0 |
| 21/22 | U18 Premier League | Birmingham City U18 | 0 | 0 | 0 | 0 | 0 | 0 |
| Season | Date | From | To | Type | Market value | Fee |
|---|---|---|---|---|---|---|
| 23/24 | 2023-07-01 | Birmingham Aca. | Birmingham U18 | Transfer | 0 | - |
| 24/25 | 2024-07-01 | Birmingham U18 | Birmingham U21 | Transfer | 0 | - |
No recorded injuries.
No market value history.
No national team data.
| Teammate | PPG played with | Joint goals | Minutes |
|---|---|---|---|
| Aurelien Gurnier | 1 | 0 | 224 |
| Jack Quirk | 2 | 0 | 180 |
Goalkeeper-specific aggregates: clean sheets and goals conceded by season.
| Season | Matches | Mins | Clean sheets | CS % | Goals conceded | GC / 90′ |
|---|---|---|---|---|---|---|
| 25/26 | 3 | 270 | 1 | 33% | 7 | 2.33 |
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Frequently asked about William O'Sullivan
Who is William O'Sullivan?
William O'Sullivan is an England professional footballer who plays as a goalkeeper for Birmingham City U21.
How old is William O'Sullivan?
William O'Sullivan is 20 years old. He was born on December 17, 2005.
What position does William O'Sullivan play?
William O'Sullivan plays as a goalkeeper (Goalkeeper).
What club does William O'Sullivan play for?
William O'Sullivan currently plays for Birmingham City U21.