Updated

Melbourne, Australia (SportsNetwork.com) - An unseeded tandem of American Eric Butorac and South African Raven Klaasen booked a spot in Saturday's men's doubles final at the 2014 Australian Open.

The 32-year-old Butorac and Klaasen took out an eighth-seeded tandem of 41- year-old Canadian Daniel Nestor and 36-year-old Serb Nenad Zimonjic 6-2, 6-4 in Thursday's semifinals at Melbourne Park.

Butorac and Klaasen stunned the defending Aussie Open champion and top-seeded Bryan brothers, twins Bob and Mike, in the third round earlier this week.

The other finalists will be a duo of Pole Lukasz Kubot and Swede Robert Lindstedt, as the 14th seeds upended a 13th-seeded French pairing of Michael Llodra and Nicolas Mahut 6-4, 6-7 (12-14), 6-3.

All four of Saturday's finalists are seeking their first-ever Grand Slam doubles title.