Emma Raducanu has withdrawn from the Great Britain squad for next week's Billie Jean King Cup tie in the Netherlands to "look after her body".
The British number two reached the Miami Open quarter-finals last week.
Raducanu has competed in seven tournaments so far this year - the most she has played in the first three months of a season.
The 22-year-old, who climbed back into the world's top 50 this week, needed medical attention before losing to fourth seed Jessica Pegula in Miami.
Raducanu's representatives said pulling out of the British squad was a "difficult decision".