The 22-year-old tennis player Emma Raducanu ends this year's campaign and plans to retain trainer into the 2026 season.
Raducanu reached the third round in three of the four major tournaments this year.
Britain's Emma Raducanu will not compete in her final two events in 2025 as a result of the illness she has been fighting for the last week and a half.
Raducanu, aged 22 had planned to participate in events in Asia but has decided to fly home to recover ahead of launching plans for the 2026 season.
These plans will involve coach Francisco Roig, as the pair have agreed to work together again next season.
She 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 medical attention at the recent Ningbo Open, where she fell in a three-set match to local wildcard Zhu Lin in the first round.
Raducanu was also moving with clear difficulty in the deciding set in the match with Zhu because of a lower back issue that has been a concern during parts of the season.
These outcomes meant an encouraging season, in which she climbed into the top 30 globally after more than three years since her previous ranking, ended with three successive defeats.
The athlete was close to victory with three match points then was defeated by Pegula in the third stage in last month's Beijing event.
She secured twenty-eight matches during 2025 and made it to the semi-final round in the Washington tournament, but her most impressive week was at March's Miami Open.
The British number one advanced to the quarters of a premier WTA event, overcoming Emma Navarro, the eighth seed on the way then falling in three sets to Pegula, ranked fourth.
She was coached by trainer Mark Petchey between Miami and Wimbledon, with Roig taking over in time for the US Open.
The original arrangement with Rafael Nadal's former coach was until the end of the season but they will keep working together, with planned training sessions for the end of the year.
Raducanu told that her three-day trial with Roig post-Wimbledon was like a "secret mission" as they tried to keep the meeting secret.
She came very close to beating world number one Aryna Sabalenka at their first tournament together in August's Cincinnati tournament.
The coach also accompanied Raducanu in the New York tournament, where she reached the third round then falling to 2022 Wimbledon champion Elena Rybakina.
