Rafael Nadal has withdrawn from the Masters 1000 events at Indian Wells and Miami because of injury.
The Spaniard, 36, has not competed since losing in the second round of the Australian Open last month.
The 22-time Grand Slam champion was expected to be out for six to eight weeks with a hip injury that hampered his defeat by Mackenzie McDonald.
"We wish Rafa continued healing and hope to see him back next year," said Indian Wells director Tommy Haas.
Nadal won at the California event - which starts next week - in 2007, 2009 and 2013, and lost in last year's final to American Taylor Fritz.