An unstoppable Serena Williams zeroed in on a record-breaking 23rd Grand Slam title Thursday by setting up an Australian Open final against her sister, Venus.
The ruthless American proved one step too far for unseeded Croat Mirjana Lucic-Baroni, whose fairytale tournament was finally ended in a crushing 6-2, 6-1 defeat on Rod Laver Arena.
Details later.
