A tennis player's income depends solely on his sporting results. In the event of injury, the daily life of those far from the Top 100 can become extremely complicated.
Exhausted but omnipresent stars, ever-longer tournaments and exhibitions that have become a business in their own right: tennis is revealing its deepest contradictions, torn between spectacle and physical survival.
Former world number 1, Simona Halep might not have become a professional player as a teenager due to chronic back pain that forced her to undergo surgery.