Club Career

• Sierro developed through Swiss youth systems and began his senior career in the Swiss Super League.

• Played for clubs such as FC Sion and BSC Young Boys, where he earned attention for his work rate, intelligent movement, and passing ability.

Move Abroad

• Continued his development with spells in Europe before securing a move to the Saudi Pro League, where he currently plays for Al-Shabab.

• At Al-Shabab, he plays an important role in midfield, offering energy, tactical discipline, and forward support.

International Career – Switzerland

• Represents the Switzerland national team as a midfielder.

• Offers depth and versatility, capable of playing:

  • Central midfield

  • Box-to-box roles

  • Advanced support in build-up play

• Known for his work rate, distribution, and ability to operate effectively in transition.

Playing Style

• Position: Central Midfielder

• Strengths:

  • Excellent passing range and vision

  • Strong work rate and pressing

  • Reliable in linking defense to attack

  • Tactical intelligence and positional flexibility

  • Ability to arrive late in the box and contribute goals