Canada's Frank Dancevic lost a heartbreaking three hour, 32-minute marathon to Joao Sousa of Portugal at the U.S. Open on Wednesday.
The native of Niagara Falls, Ont., blew five set points in the first tiebreak before going on to lose the match 7-6(6), 3-6, 6-2, 4-6, 7-6(2) to the 32-seeded Sousa.
Dancevic fired 17 aces to Sousa's 10 but committed 51 unforced errors in the first round match. He also cashed in on four out of 14 break opportunities.
In first round women's doubles action, Ottawa's Gabriela Dabrowski teamed up with Poland's Alicja Rosolska to defeat the Australian pair of Ashleigh Barty and Casey Dellacqua 6-2, 6-3 while Toronto's Sharon Fichman and South African partner Chanelle Scheepers won a hard-fought match over Kveta Peschke of the Czech Republic and Katarina Srebotnik of Slovakia 6-4, 7-6(3).