That means Nadal and Alcaraz will once again be team-mates, just as they were during the Olympics in the summer when they joined together to form a high-profile doubles partnership in Paris, but before that they will be on opposite sides of the net on Thursday.
The pair meet in the semi-finals of the Six Kings Slam, an exhibition event being held in Riyadh, Saudi Arabia.
Each of the six players competing will take home a guaranteed £1.15million, with the winner picking up £4.59m – more than has ever been on the line at an event in the sport’s history.
Nadal and Novak Djokovic – who faces world No1 Jannik Sinner on Thursday – were both handed byes through to the semi-finals, while Alcaraz joined them in the last four after beating Holger Rune 6-4 6-2 on Wednesday.
Nadal and Alcaraz have played each other three times previously, with Alcaraz beating his idol for the first time in their most recent meeting, in Madrid two years ago.
Nadal vs Alcaraz start time
Play is scheduled to begin in Saudi Arabia from 5:15pm BST today on Thursday October 17, 2024.
However, an order of play has not yet been confirmed, with Djokovic’s match against Sinner also taking place.
How to watch Nadal vs Alcaraz
TV channel: The match between Alcaraz and Nadal will be broadcast live in the UK on Sky Sports Tennis, with coverage getting underway at 5:15pm BST.
Live stream: Sky Sports subscribers will also be able to watch on a live stream online via the Sky Go app, while DAZN will be streaming the match for free.