Two-time defending champion Carlos Alcaraz is bracing for a tough semi-final test from "ambitious" British lefty Jack Draper on Saturday as he aims to take the next step toward a rare Indian Wells ATP Masters three-peat.

Jack Draper has improved a lot in recent months and has become a threat even to top players. The young Briton has truly remarkable potential and – if he reduces the number of his injuries – he has the right skills to aspire to win even the most prestigious titles.