Raducanu advanced to round three in three Grand Slam tournaments Grand Slams this year.
Britain's Emma Raducanu has pulled out of her final two events in 2025 as a result of the illness that has affected her for the last week and a half.
At 22 years old was due to play in Tokyo and Hong Kong but chose to travel back to recover ahead of launching next year's training.
Those preparations are set to feature her coach Francisco Roig, as they have decided to continue collaborating again next season.
The tennis professional had her blood pressure taken in her opening round with Ann Li in the Wuhan tournament and retired when trailing 6-1 4-1 on an oppressively humid day.
Another medical visit was necessary medical attention at this week's Ningbo Open, where she fell in a three-set match to Chinese wildcard Zhu Lin in round one.
Her movement was far from freely in the third set in the match with Zhu due to a lower back issue that has troubled her at times this year.
Those results followed a positive campaign, in which she climbed into the international top 30 after more than three years for the first time since 2022, ended with three successive defeats.
Raducanu had three match points before losing to Jessica Pegula in the third round in last month's Beijing event.
She secured 28 victories during 2025 and made it to the semi-final round in Washington, but the highlight of her season was at the Miami event in March.
Ranked first in Britain reached the quarter-finals of a premier WTA event, beating eighth seed Emma Navarro en route prior to a loss in three sets to the world number four Pegula.
Her coach was Mark Petchey as coach between Miami and Wimbledon, with Francisco Roig stepping in for the US Open.
The initial agreement with the former trainer of Nadal was through the season's conclusion but the partnership will continue, with a training block pencilled in for the end of the year.
The athlete revealed that the trial session with Roig after Wimbledon was like a "covert operation" as the meeting was kept under wraps.
The player was close to beating world number one Aryna Sabalenka at their initial event as a team in Cincinnati during August.
The coach also accompanied Raducanu in the New York tournament, where she advanced to round three prior to losing to Rybakina, champion at Wimbledon in 2022.
