Welsh teenager Evan Hoyt will join Rafael Nadal for a practice session on Sunday before the Spaniard plays in the men's singles final at Wimbledon.
Llanelli-born Hoyt, 16, has practiced every day with Nadal since losing his second round match in the boys' championship at SW19 on Tuesday.
"This was my best experience ever," Hoyt said after his first rally with the two-time Wimbledon champion.
Hoyt has also hit with Robin Soderling and Marin Cilic at Wimbledon.
His hopes in the boys' event in his debut at Junior Wimbledon were ended by number eight seed Mate Pavic in a 7-6 (7-3), 6-2 defeat. That followed a 6-3, 6-4 victory over Spain's Axel Alvarez Llamas in the first round.
Defending champion Nadal faces world number one Novak Djokovic in Sunday's final.