2016 Australian Open Quarterfinal: Serena Williams vs. Maria Sharapova

World No. 1 Serena Williams looks to extend her win streak over No. 5 Maria Sharapova to 18 consecutive matches on Tuesday in the Australian Open quarterfinals. But is this the year Sharapova snaps her slide? Join WTA Insider on Tuesday at 12:45pm AEDT/Monday 8:45pm EST as we live blog the match from Melbourne Park.