Daniel Vivian Mayoral is a Spanish central defender born on August 5, 1999, in Santander, Spain. He began his youth career at Racing Santander before joining Athletic Bilbao's academy system in 2017. Vivian made his professional debut with Athletic Bilbao B in the Segunda División B during the 2018-19 season. He was promoted to Athletic Bilbao's first team and made his La Liga debut in October 2020. Known for his aerial ability, defensive solidity, and leadership qualities despite his young age, Vivian quickly established himself as a key player for Athletic Bilbao. His consistent performances in La Liga earned him recognition at the international level. He represented Spain at various youth levels before making his senior debut for the Spanish national team. Vivian has been praised for his maturity on the pitch and his ability to read the game effectively. He typically wears the number 3 shirt and has become an integral part of both Athletic Bilbao's defense and Spain's national team setup. His rise through the ranks demonstrates Athletic Bilbao's continued commitment to developing local talent through their renowned youth academy system.