Hello and welcome to LIVE coverage from this fourth round clash between Maria Sharapova and Dominika Cibulkova

LITTLE AND LARGE - It's a little bit of an odd sight at the spin of the coin as Cibulkova stands at just 5'3" while Sharapova is almost an entire foot taller at 6'2"!

STATS - These two have met each other five times before with Sharapova leading the head-to-heads by three wins to one. Interestingly, though, none of those previous meetings have been on the hard courts. Four have been on clay and one on the grass. And the fact that it today's clash is on a hard court definitely favours Sharapova.

It's perfect tennis weather in Melbourne today. Current temps are around about 21 degrees with a predicted high later of about 24. It's sunny by not overly so, there are a few clouds around with a little bit of breeze.