The 23-year-old will drop out of the top 50 next week.
World No. 9 debuts new clothes in Brisbane.
Former No. 1 says pain part of making gains.
The Aussie's most important win came off the court.
The Russian came to the aid of a Chinese teenager to create a feel good moment at the Shenzhen Open.
The blockbuster battle between Roger Federer and Serena Williams lived up to its billing.
World No. 1 sees Big 4 delivering major titles in 2019.
