Halep pulls out of Qatar Open
The Romanian's withdrawal follows her Australian Open quarter-final loss to Serena Williams.
"Unfortunately I've decided to withdraw, I can't wait to be back in Doha next year," organisers quoted her as saying on Instagram.
She gave no reason for her absence from the March 1-6 tournament.
At Melbourne Halep, 29, was thwarted by Williams in her bid for a maiden triumph at the year's opening Grand Slam after falling short to Caroline Wozniacki in the 2018 decider, and losing in straight sets to Garbine Muguruza in last year's semi-finals.
The 2018 French Open champion and 2019 Wimbledon winner's seven-year streak in the top 10 is the longest active run among women.