 STORY CONTINUES BELOW THESE SALTWIRE VIDEOS MELBOURNE Reuters Fifth seed Aryna Sabalenka outmuscled Donna Vekic 6-3 6-2 in a ferocious battle of big hitters on Wednesday to reach the semi-finals of the Australian Open for the first time. Related Content Mens Tennis Travels to Las Vegas for Four Matches in Three Days NAU ROUNDUP: ... Tennis-Sabalenka prevails in heavyweight clash to reach Melbourne... 