British number one Johanna Konta says cuts to her Lawn Tennis Association funding put her career at risk.
She spoke out after Andy Murray said talking to the LTA about the future of British tennis was a waste of his time.
Konta has risen more than 100 places to 48th in the world rankings since the LTA reduced her funding last December.
"If anyone's livelihood, career or dreams are jeopardised, I don't think that is ever a healthy position to be in," she told BBC Sport.
Men's world number two Murray made his criticisms of the LTA after he inspired Great Britain to win the Davis Cup for the first time in 79 years with victory over Belgium last weekend.