The Saudi Al-Ahli Club has begun to benefit from the expertise of Dr. Nisan Costello, a high-performance sports nutrition consultant, as part of the initial steps taken by sports director Rui Pedro to develop the team's scientific and physical infrastructure.

Costello is recognized as one of the leading experts in elite sports nutrition and serves as a senior lecturer at Leeds Beckett University. He has the ability to translate scientific theories into practical applications that benefit athletes in major competitions.

His research and supervisory work includes advanced projects related to energy and fluid needs, body building, behavior change, as well as performance-oriented nutrition. He also supervises more than ten PhD students in practical applications.

Costello was able to secure external funding exceeding 600,000 pounds to support innovation in professional sports, reflecting his significant ability to connect scientific research with practical applications on the field.

He has over ten years of experience at the highest levels of sports, having collaborated with prominent English clubs such as Chelsea, Leeds United, and Newcastle. Additionally, he has provided direct support to World Cup champions, European champions, and several international players.

Costello's approach combines scientific precision with practical application to ensure the development of comprehensive strategies in nutrition, recovery, and performance enhancement. This enables players to deliver their best performance during crucial moments in matches.