Rafael Nadal has pulled out of the Monte Carlo Masters, saying his body "simply won't allow" him to play in the tournament, which starts on Sunday.
Nadal, 37, made his long-awaited return at January's Brisbane International after almost a year out with injury.
But the Spaniard injured a hip, which ruled him out of the Australian Open and has kept him sidelined ever since.
"You have no idea how hard this is for me to not be able to play these events," Nadal posted on X., external
After pulling out of Indian Wells last month and the Qatar Open before that, it was hoped 22-time Grand Slam champion Nadal would return to the court in Monte Carlo on his favoured clay surface.