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.

The Indian Wells semifinals will feature a blockbuster clash between two-time defending champion Carlos Alcaraz and British sensation Jack Draper. This will be their third meeting, with neither player dropping a set en route to the semifinals,

Jack Draper sets up Indian Wells semi-final against Carlos Alcaraz after beating Ben Shelton - Draper saw off the American in straight sets to reach the last four of the Paribas Open

Ben Shelton and Jack Draper are headed to their first tour-level competition. Both will try to make their first Masters 1000 semifinals.

Jack Draper forced his way into his first Masters 1000 semi-final, overcoming the venomous power and vibrant athleticism of his young American opponent Ben Shelton.

British No.1 tennis star Jack Draper has reached the Indian Wells semi-finals with a superb 6-4 7-5 victory over American star Ben Shelton. The 23-year-old is now set for a mouth-watering showdown with Wimbledon and French Open champion Carlos Alcaraz in the last four.

Jack Draper earned one of the biggest wins of his career on Thursday when he topped Ben Shelton 6-4, 7-5 in the quarterfinals of the BNP Paribas Open at Indian Wells, Calif.