The 22-year-old tennis player Emma Raducanu ends the current season and plans to retain her coach through next year.
The British player reached the third round in three of the four Grand Slams this year.
Britain's Emma Raducanu has withdrawn from her final two events in 2025 because of the illness she has been fighting in recent days.
Raducanu, aged 22 was scheduled to compete in events in Asia but opted to return home to regain her health ahead of launching plans for the 2026 season.
These plans are set to feature her coach Francisco Roig, as the pair have agreed to work together for the upcoming season.
The tennis professional required blood pressure checks during her first-round match versus Ann Li in Wuhan last week and retired when losing 6-1 4-1 on a very muggy occasion.
She needed once more a doctor's assessment at the Ningbo Open this week, where she lost in three sets to local wildcard Zhu Lin in round one.
She was also playing with clear difficulty in the final set in the match with Zhu owing to the lower back problem that has been a concern on several occasions in 2025.
These outcomes meant an encouraging season, in which the player advanced into the international top 30 after more than three years in more than three years, finished with a trio of defeats.
The athlete was close to victory with three match points then was defeated by Pegula in the third stage in Beijing last month.
She secured 28 victories during 2025 and advanced to the semis in Washington, but her standout performance was at the Miami Open in March.
The British number one reached the quarter-finals of the WTA 1000 event, defeating eighth seed Emma Navarro during the tournament prior to a loss in three sets to fourth-ranked Pegula.
She was coached by Mark Petchey from Miami until Wimbledon, with Roig assuming the role ahead of the US Open.
The first plan with Rafael Nadal's former coach was through the season's conclusion but they will keep working together, with planned training sessions in the coming months.
The athlete revealed that a three-day test period with Roig after Wimbledon was like a "secret mission" as they aimed to maintain secrecy.
The player was close to overcoming Sabalenka, the world number one at their initial event as a team in August's Cincinnati tournament.
Roig joined her in the New York tournament, where she reached the third round then falling to 2022 Wimbledon champion Elena Rybakina.
