Top seeds Mahesh Bhupathi and Max Mirnyi advanced to the doubles semi-finals, while Leander Paes and David Rikl bowed out of the 2.45 million dollar ATP Masters tennis tournament in Montreal, Canada.
Bhupathi and Mirnyi of Belarus defeated Wayne Arthus and Paul Hanley of Australia in two tough sets 7-6 (10/8), 7-6 (7/5) on Friday to book a place in the last four.
But the fifth seeded pair of Paes and Czech Republic's Rikl went down to second seeds Bob and Mike Bryan of USA 3-6, 4-6 in the quarterfinals.
Bhupathi and Mirnyi will now take on Cyril Suk and Martin Damm of Czech Republic after the sixth seed pair beat James Blake of USA and Joshua Eagle of Australia 6-2, 3-6, 6-4.
In the other semi-final, Bob and Mike Bryan will face the fourth seed pair of Jonas Bjorkman of Sweden and Todd Woodbridge of Australia.