A second successive grand slam without Andy Murray could be on the horizon, with a decision on his Australian Open participation looming.
A show of resilience saw Maria Sharapova into the Shenzhen Open quarter-finals, while there was a first-round exit for Jelena Ostapenko.
Former world number one Andy Murray says he is not ready to compete at the top level after his Brisbane International withdrawal.
A right hip injury has forced former world number one Andy Murray to pull out of the Brisbane International.
Top seed Garbine Muguruza bowed out of the lead-up tournament when she was ahead 2-1 in the third set on Tuesday, citing cramps.
As he prepares to make his competitive return from a hip injury, Andy Murray says he will have a lighter 2018 schedule to protect his body.
With Novak Djokovic absent, Dominic Thiem took centre stage at the Qatar Open, the top seed easing through the first round.
Angelique Kerber and Alexander Zverev clinched victory for Germany over Belgium in the Hopman Cup.
With the Australian Open fast approaching, Petra Kvitova has had to withdraw from the Brisbane International.
Ryan Harrison beat Leonardo Mayer on Monday to set up a second-round clash with Andy Murray at the Brisbane International.