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 beats Ben Shelton on a cold and blustery evening in Indian Wells to set up a tantalising semi-final against Carlos Alcaraz.

Carlos Alcaraz has tipped British star Jack Draper to become one of the best players on the ATP Tour within the next year. Both players clash in the Indian Wells semi-final tomorrow and could be set for more major battles over the coming years.