Alejandro Valverde - the 'Green Bullet' - was an international symbol of Spanish cycling for a quarter of a century before his retirement in 2022. Hard-working and supremely talented, he won the Vuelta a España and stood on the podium of the Giro d'Italia and the Tour de France. World champion in 2018, he was also the world's number-one-ranked rider four times. A man of indisputable charisma, he was also a convicted doping cheat.

When the Spanish police investigation, Operación Puerto, uncovered a vast international blood doping ring, Valverde denied all involvement. The revelations unearthed by Operación Puerto threatened to force cycling off the road.

Valverde's long career was a high wire walk between the venal interests that surround elite sport in Spain. In a nation beset by corruption, political incompetence and social division, Valverde's talent aided the public image of unscrupulous political and economic institutions.