Sam Allardyce is an English football manager and former player, known for his pragmatic approach to the game. He has managed several clubs in the Premier League, including Bolton Wanderers, Newcastle United, and Sunderland. Allardyce is often recognized for his ability to improve struggling teams and achieve survival in the league. Born on October 19, 1954, in Walsall, England, Allardyce had a playing career as a central defender before transitioning to management. He gained a reputation for his tactical acumen and focus on defensive organization, earning the nickname "Big Sam." In 2016, he briefly managed the England national team.