ZywOo

Mathieu Herbaut (born 9 November 2000), known by the pseudonym ZywOo, is a French professional Counter-Strike player for Team Vitality. Considered one of the greatest players in Counter-Strike history for his dominance in both Counter-Strike: Global Offensive and Counter-Strike 2, he has been ranked the No. 1 player in the world by HLTV in 2019, 2020, 2023 and 2025, the No.2 player in 2021 and 2022, and No.3 in 2024. He is the second-youngest ever HLTV Player of the Year at 19 years old, and one of only three players, alongside coldzera and donk, to be named the HLTV Player of the Year in their first full year as a professional player.