Serena Williams registered straight set win by 6-2 6-3 over Johanna Konta to storm into Australian Open semi-final.
Serena, 35, will play Lucic-Baroni, 34, in the semis, and if she gets past Old Croat, an all-Williams final remains a possibility, with Venus, 36, to play the baby of the bunch, Coco Vanderweghe in the other semi.
Williams is now two wins from claiming an Open-era record 23rd major title. Konta departs, unable to match her run to the semi-final at Melbourne Park 12 months ago.
Its the first time in the Open era that two players over 35 are featuring in a Grand Slam semi-finals as Serena joins her sister Venus. In a match of big hitting and small margins, it was Williams who established an early control that she would not relinquish.