Champions to defend Brisbane titles
Grigor Dimitrov from Bulgaria and the Czech Republic's Karolina Pliskova are set to defend the Brisbane International titles they won last year, the tournament's director Geoff Quinlan confirmed on Wednesday. World number one Rafael Nadal and Andy Murray, ranked third, will also kick off their Australian Open preparations in Brisbane. "Serena is more than welcome. The door is wide open," Quinlan added. "It'll be amazing, there's no denying that."