Emma Raducanu's agent insists the US Open champion is not being distracted by commercial interests.
Max Eisenbud, who also guided the careers of Maria Sharapova and Li Na, says Raducanu's win in New York sparked unprecedented interest from the corporate world.
And he maintains his company IMG has "left million of dollars off the table" by limiting Raducanu to a maximum of 18 sponsor days a year.
"We could have done 50 days of shoots," Eisenbud told The Sports Desk podcast.
"I've never seen the amount of excitement and companies that wanted to be in business with Emma after the US Open.