Stefanos Tsitsipas closed in on a first Grand Slam title by reaching the Australian Open semi-finals on Tuesday in impressive fashion, as Victoria Azarenka also powered into the last four. Tsitsipas was a convincing 6-3, 7-6 (7/2), 6-4 winner over unseeded Jiri Lehecka of the Czech Republic and faces Karen Khachanov next. The 24-year-old Tsitsipas is the highest remaining seed left at three and with Melbourne's large Greek community roaring him on, his title charge is gathering pace. "I'm feeling great with my tennis. I don't think I felt so good in a long time," said Tsitsipas, after making the Australian Open semi-finals for a fourth time. "I'm a different player, playi...Keep on reading: Australian Open: Impressive Stefanos Tsitsipas to face Khachanov in semis