MASON, Ohio - The doubles win streak of Canadian Vasek Pospisil and Jack Sock came to an end on Sunday as the pair lost 6-3, 6-2 to Bob and Mike Bryan in the Western & Southern Open final.

Vancouver's Pospisil and American Sock had won 14 consecutive matches since getting together on the eve of Wimbledon and starting their collaboration with the Grand Slam title at the All England Club. They followed up last month by winning in Atlanta in their second-ever outing.

The partners set a record in modern tennis, surpassing the previous best start by a new doubles team of 12-0 set in 1984-85 by Paul Annacone and Cristo Van Rensburg.

The Bryans, ranked No. 1 in the world, dumped Pospisil and Sock team in just 53 minutes, breaking three times and saving the only break point they faced.

Pospisil and Sock are now headed for the US open where they will try to duplicate their rookie Grand Slam success.