Xabier Clemente is the son of Javi Clemente, the discreet Athletic coach who "never gets into trouble". The son of the emblematic coach is a valuable piece in Ernesto Valverde's technical organization chart.

Xabier (49 years old, graduate in Physical Activity and Sports Sciences) is integrated into the Rehabilitation area of the San Mamés club. His activity consists of working and recovering injured players, those who do not travel and stay in Lezama. He has been under the orders of coaches such as Caparrós, Bielsa, Marcelino, Ziganda and Berizzo.