Aus Open: Sania Mirza/Ivan Dodig bt Martina Hingis/Leander Paes

Defending champions are OUT! 7-6, 6-3 from Sania Mirza and Ivan Dodig to beat Martina Hingis and Leander Paes.

The first set goes to a tiebreak - going in favour of the top seeds at 7-6.

There's a chance for Dodig and Mirza to break back..and they do! It's 3-3 between the pairs now.

They break back, and now both pairs have held for 5-5.

Hingis and Paes are up a break in the first set, leading Mirza and Dodig 3-2 as Leander Paes serves in the 6th game.

The Indo-Swiss pair have 28 Grand Slam doubles titles between them and are both renowned exponents of the format.

Paes and Hingis won three of 2015's four Slams, and are the reigning Australian Open mixed doubles champions.

Mirza and Dodig are the top seeded mixed doubles pair at the tournament.

Three Australian Open number 1 sides among the four playing today, with Mirza and Hingis through to the finals of the women's doubles.