Sania Mirza and her Russian partner Elena Vesnina made a shock first round exit from the WTA Rogers Cup tennis tournament, losing to the Italian pair of Sara Errani and Roberta Vinci on Wednesday.
The fifth-seeded Indo-Russian pair squandered a set's lead and eventually went down 6-2, 0-6, 7-10.
After winning the first set comfortably, Sania and Vesnina failed to maintain the momentum and lost the next set at love.
However, they put up a strong fight in the decider, but it wasn't enough to prevent Errani and Vinci settling the issue in the tie-breaker.
Earlier, Sania failed to make it to the main draw of the singles after losing a marathon three-setter to Germany's Kathrin Woerle in the qualifiers.