Francisco Sierralta
Francisco Sierralta, 29, from Chile ➤ AJ Auxerre, since 2025 ➤ Centre-Back ➤ Market value: €1.20m ➤ * 06/05/1997 in Las Condes, Chile

Info
Biographical card, current club and contract facts. Empty fields mean the source did not publish that value.
- Club
- AJ Auxerre
- League
- Ligue 1
- Position
- Defender - Centre-Back
- Shirt
- #4
- Age
- 29
- Date of birth
- 06/05/1997
- Height
- 1,92m
- Foot
- right
- Citizenship
- Chile, Spain
- Joined
- 01/07/2025
- Contract until
- 30/06/2029
- Market value
- €1.20m
- Career fees
- €2.72m
Statistics
Career totals from Transfermarkt: this season, then by competition and by club. Minutes and cards appear when the source recorded them.
This season
Season totals are not in yet for this player.
By competition
| Competition | Apps | G | A |
|---|---|---|---|
| Championship | 104 | 2 | 1 |
| Serie B | 21 | 1 | 0 |
| Torneo Apertura | 11 | 1 | 1 |
| Ligue 1 | 10 | 1 | 0 |
| Copa Sudamericana | 8 | 0 | 0 |
| EFL Cup | 8 | 0 | 0 |
| Serie A | 6 | 0 | 0 |
| Torneo Clausura | 6 | 0 | 0 |
| FA Cup | 6 | 0 | 0 |
| Premier League | 5 | 0 | 0 |
| Copa Chile | 2 | 0 | 0 |
| Italy Cup | 1 | 0 | 0 |
| Coupe de France | 1 | 0 | 0 |
| Liguilla Pre Libertadores | 1 | 1 | 0 |
| Torneo Clausura play-offs | 0 | 0 | 0 |
| Serie B Play-off | 0 | 0 | 0 |
By club
| Club | Apps | G | A |
|---|---|---|---|
| Watford | 123 | 2 | 1 |
| Palestino | 26 | 1 | 1 |
| Parma | 16 | 0 | 0 |
| AJ Auxerre | 11 | 1 | 0 |
| FC Empoli | 11 | 1 | 0 |
| U. Católica | 2 | 1 | 0 |
| Udinese | 1 | 0 | 0 |
Transfers
Recorded moves between clubs, with fee and market value on the day of the deal when the source has them.
| Date | Season | From | To | Fee | Market value |
|---|---|---|---|---|---|
| 01/07/2025 | 25/26 | Watford | AJ Auxerre | €1.80m | €1.50m |
| 09/09/2020 | 20/21 | Udinese | Watford | ? | €350k |
| 31/08/2020 | 19/20 | FC Empoli | Udinese | End of loan | €350k |
| 11/01/2020 | 19/20 | Udinese | FC Empoli | loan transfer | €400k |
| 30/06/2019 | 18/19 | Parma | Udinese | End of loan | €400k |
| 11/08/2017 | 17/18 | Udinese | Parma | loan transfer | €300k |
| 10/08/2017 | 17/18 | Granada CF | Udinese | €666k | €300k |
| 30/06/2017 | 16/17 | Palestino | Granada CF | End of loan | €300k |
| 01/07/2016 | 16/17 | Granada CF | Palestino | loan transfer | €300k |
| 30/06/2016 | 15/16 | U. Católica | Granada CF | End of loan | €300k |
| 03/01/2015 | 14/15 | Granada CF | U. Católica | loan transfer | - |
| 02/01/2015 | 14/15 | U. Católica | Granada CF | €253k | - |
| 01/01/2015 | 14/15 | Catolica U21 | U. Católica | - | - |
National
Senior and youth national-team spells: caps, goals, shirt number and whether the player is still in the current pool.
| Team | Caps | Goals | Shirt | Debut | Status |
|---|---|---|---|---|---|
| Chile | 20 | 0 | 15 | 2018-06-08 | Current international |
| Chile U20 | 6 | 1 | 13 | 2016-09-01 | Former international |
Market value
Current and peak Transfermarkt valuations, plus the history of changes by club and age. Rankings are relative to the current squad, league and position group.
- Current
- €1.20m
- Highest
- €2.00m · 14/09/2022
- Last change
- 01/06/2026
| Date | Age | Club | Value |
|---|---|---|---|
| 11/01/2016 | 18 | CD Universidad Católica | €300k |
| 21/12/2017 | 20 | Parma Calcio 1913 | €300k |
| 18/06/2018 | 21 | Parma Calcio 1913 | €300k |
| 20/12/2018 | 21 | Parma Calcio 1913 | €300k |
| 06/06/2019 | 22 | Parma Calcio 1913 | €400k |
| 12/12/2019 | 22 | Udinese Calcio | €400k |
| 08/04/2020 | 22 | FC Empoli | €325k |
| 21/08/2020 | 23 | Empoli FC | €350k |
| 15/10/2020 | 23 | Watford FC | €350k |
| 10/03/2021 | 23 | Watford FC | €500k |
| 11/06/2021 | 24 | Watford FC | €1.50m |
| 23/12/2021 | 24 | Watford FC | €1.50m |
| 15/06/2022 | 25 | Watford FC | €1.50m |
| 14/09/2022 | 25 | Watford FC | €2.00m |
| 27/10/2022 | 25 | Watford FC | €1.80m |
| 01/06/2023 | 26 | Watford FC | €1.20m |
| 21/12/2023 | 26 | Watford FC | €1.50m |
| 24/05/2024 | 27 | Watford FC | €1.50m |
| 30/12/2024 | 27 | Watford FC | €1.50m |
| 27/05/2025 | 28 | Watford FC | €1.50m |
| 15/12/2025 | 28 | AJ Auxerre | €1.50m |
| 01/06/2026 | 29 | AJ Auxerre | €1.20m |
xG Statistics
Francisco Sierralta's xG Statistics block is an Understat shot model for the 2025 season. It does not replace goals and assists — it explains them. xG and xA ask whether the chances were good enough; xGChain and xGBuildup show how often the player was on the ball in moves that became shots. Use minutes as the denominator: a large xG in 80 minutes is a hot streak, the same xG over 1,200 minutes is a role. Figures are rounded to two decimals and stay empty when Understat has no match for this player.
| Season | League | Club | Apps | Min | G | xG | npxG | A | xA | Sh | KP | xGChain |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | Ligue 1 | Auxerre | 10 | 869 | 1 | 0.73 | 0.73 | 0 | 0.04 | 7 | 1 | 1.44 |
What the columns mean
Read this table as chance quality, not as a scoreboard. A player can outscore xG (finishing well) or lag behind it (missed sitters). Compare rows only when minutes are in the same range.
Apps· Appearances- Matches in which the player was used in this league season, including substitute minutes.
Min· Minutes- Total minutes on the pitch. Useful when comparing output: 1 goal in 90 minutes is not the same as 1 goal in 800.
G· Goals- Goals credited to the player in the Understat shot model for that season.
xG· Expected goals- The quality of shots the player took, expressed as the number of goals an average finisher would score from the same chances. A 0.30 xG shot is a chance that goes in about 3 times in 10.
npxG· Non-penalty xG- Expected goals with penalties removed. This is the cleaner read of open-play and set-piece finishing, because a penalty is usually ~0.76 xG by itself.
A· Assists- Goals that followed the player's last pass. Actual assists, not the model.
xA· Expected assists- The xG value of shots that came directly from the player's key passes. High xA with few assists usually means teammates missed good chances.
Sh· Shots- Total shots recorded by Understat, including blocked and off-target attempts.
KP· Key passes- Passes that led to a shot. This is the volume behind xA.
xGChain· xG chain- Team xG from possessions the player touched. It captures involvement in build-up, not only the shot or the last pass. A midfielder who starts attacks can rank high here without scoring.
xGBuildup· xG buildup- The same possession xG, but excluding the shot-taker and the assist. This is the purest 'how much did this player help create the chance before the final ball' number.
NPG· Non-penalty goals- Goals scored from open play or set pieces, excluding penalties.
Teammates
Ackah-Tidiane ZoukrouDefender - Left-Back
Aristide ZossouAttack - Left Winger
Arthur PiedfortMidfield - Defensive Midfield
Assane DiousséMidfield - Defensive Midfield
Axel TuanzebeDefender - Centre-Back
Bryan OkohDefender - Centre-Back
Cameron ArcherAttack - Centre-Forward
Christ MakossoDefender - Centre-Back