Andrew Flintoff is set to be appointed as the new head coach of the Sydney Thunder in the Big Bash League (BBL), following the departure of Trevor Bayliss. Bayliss, who led the team for five years, including a BBL final appearance in the 2024-25 season, left the Thunder after they finished last in the 2023-24 and 2025-26 seasons. Thunder's general manager, Trent Copeland, expressed the need for a 'world-class T20 coach,' leading to Flintoff's selection. Flintoff has recent coaching experience with the England Lions and has briefly worked with England's white-ball squads. His only franchise coaching experience was with Northern Superchargers in the Hundred, where he did not return for the 2026 season. Flintoff also has BBL experience as a player, having represented Brisbane Heat in the 2014-15 season. One of his first tasks will be addressing the captaincy situation of David Warner, who faces legal challenges. Flintoff's appointment will complete the head coaching roles in Cricket New South Wales' men's programs, following recent appointments of James Hopes and Brad Haddin.