Melbourne - South Africa's Raven Klaasen and his doubles partner, Eric Butorac, have reached the semi-finals of the Australian Open after beating No 12 seeds Treat Huey and Dominic Inglot 6-7 (3/7), 7-6 (8/6), 6-4 on Tuesday.
The unseeded duo caused an upset when they beat top-seeded Americans Bob and Mike Bryan 7-6 (11/9), 6-4 in the third round on Monday.
They will next face the winners of the quarter-final clash between Australian duo, Alex Bolt and
Andrew Whittington, and No 8 seeds, Daniel Nestor and Nenad Zimonjic.
The unseeded duo caused an upset when they beat top-seeded Americans Bob and Mike Bryan 7-6 (11/9), 6-4 in the third round on Monday.
They will next face the winners of the quarter-final clash between Australian duo, Alex Bolt and
Andrew Whittington, and No 8 seeds, Daniel Nestor and Nenad Zimonjic.