Roberta Vinci climbs to a new career-high ranking, while Victoria Azarenka climbs to the top of the Singapore standings.
Nick Kyrgios became the top-ranked Aussie for the first time as a result of his semifinal performance in Miami.
"To be brave and take risk is the way you're going to win," world No. 4 says.
Tennis timber: Australian Open announces wood replaces hard court for 2017.
Russian feels women players sacrifice more to be on tour.
Teenagers Tiafoe and Paul headline wild cards for U.S. Men's Clay Court Championships.
Svetlana Kuznetsova finished off a wonderful first set in Miami with this gem.