Jack Nayler
FSI Faculty
His role at FSI Training
Jack Nayler is part of the FSI Training faculty, providing an applied perspective in sport science and performance optimisation in professional football, integrating data, technology, and decision-making in elite environments.
Currently
He is Head of First Team Sports Science at Everton FC, where he leads the scientific and performance processes of the first team within a highly demanding competitive environment.
Professional background
He has extensive international experience at top-level clubs, having held leadership roles within sport science departments at RB Leipzig and Celtic FC, as well as applied positions at Real Madrid, Paris Saint-Germain, and Chelsea FC.
His career has focused on the integration of science and technology within training, with particular attention to load management, physical preparation, and competitive availability of players.
His profile combines advanced academic training with sustained practice in high-performance settings, standing out for the effective transfer of scientific knowledge to professional football.