| Name | Siem de Jong |
| Date of birth | 28/01/1989 |
| Nationality | Swiss |
| Position | Attacking midfielder |
| More info | https://en.wikipedia.org/wiki/Siem_de_Jong |
| Team | Appearances | Goals | Yellow cards | Red cards |
| Sydney FC | 21 | 6 | 2 | 0 |
| Match Type | Appearances | Goals | Yellow cards | Red cards |
| FFA Cup | 2 | 1 | 0 | 0 |
| League | 15 | 4 | 1 | 0 |
| Asian Champions League | 2 | 1 | 0 | 0 |
| A-League Finals | 1 | 0 | 0 | 0 |
| A-League Grand Final | 1 | 0 | 1 | 0 |
| # | Player | Appearances on the same team | Team(s) |
| 1. | Andrew Redmayne | 21 | Sydney FC |
| Brandon O`Neill | 21 | Sydney FC | |
| Adam le Fondre | 21 | Sydney FC | |
| 4. | Joshua Brillante | 20 | Sydney FC |
| Alex Wilkinson | 20 | Sydney FC | |
| 6. | Milos Ninkovic | 19 | Sydney FC |
| 7. | Paulo Retre | 18 | Sydney FC |
| Alex Brosque | 18 | Sydney FC | |
| Michael Zullo | 18 | Sydney FC | |
| 10. | Aaron Calver | 17 | Sydney FC |
| Team | Date | Match Type | Result | Goals | Bookings | On | Off | Notes |
| Sydney FC | 19/09/2018 | FFA Cup | Avondale (VIC) 2-4 Sydney FC after extra time | Kick off | 67' | |||
| 6/10/2018 | FFA Cup | Western Sydney Wanderers 0-3 Sydney FC |  | Kick off | 83' | |||
| 19/10/2018 | League | Adelaide United 1-1 Sydney FC | Kick off | Full time | ||||
| 27/10/2018 | League | Sydney FC 2-0 Western Sydney Wanderers | 67' | Full time | ||||
| 8/12/2018 | League | Sydney FC 1-3 Wellington Phoenix | 45' | Full time | ||||
| 15/12/2018 | League | Western Sydney Wanderers 1-3 Sydney FC | | Kick off | 71' | |||
| 21/12/2018 | League | Perth Glory 1-2 Sydney FC | Kick off | 60' | ||||
| 29/12/2018 | League | Sydney FC 2-1 Brisbane Roar | Kick off | 69' | ||||
| 4/01/2019 | League | Sydney FC 5-2 Central Coast Mariners | Kick off | 72' | ||||
| 9/01/2019 | League | Perth Glory 3-1 Sydney FC |  | Kick off | 77' | |||
| 13/01/2019 | League | Sydney FC 2-1 Adelaide United | | Kick off | Full time | |||
| 19/01/2019 | League | Sydney FC 1-0 Newcastle Jets | Kick off | 85' | ||||
| 23/01/2019 | League | Wellington Phoenix 0-1 Sydney FC | | Kick off | 29' | |||
| 29/03/2019 | League | Brisbane Roar 1-3 Sydney FC | | 73' | Full time | |||
| 6/04/2019 | League | Sydney FC 2-1 Melbourne Victory | 65' | Full time | ||||
| 10/04/2019 | Asian Champions League | Sydney FC 3-3 Shanghai SIPG | | Kick off | 66' | |||
| 13/04/2019 | League | Western Sydney Wanderers 1-1 Sydney FC | 65' | Full time | ||||
| 18/04/2019 | League | Sydney FC 1-0 Perth Glory | Kick off | 72' | ||||
| 23/04/2019 | Asian Champions League | Shanghai SIPG 2-2 Sydney FC | Kick off | 73' | ||||
| 12/05/2019 | A-League Finals | Sydney FC 6-1 Melbourne Victory | Kick off | 66' | ||||
| 19/05/2019 | A-League Grand Final | Perth Glory 0-0 Sydney FC (Penalties: 1-4) | | Kick off | 78' |