Caroline Wozniacki has been sent tumbling out of the Rogers Cup after blowing a one-set lead against Sorana Cirstea.
The Romanian, ranked 27th in the world, hung tough after losing a first set rife with breaks of serve by seven games to five.
Both players broke twice in the second set, which went to a tie-break. However, Cirstea, sensing that she could be heading for the exit, whitewashed the Dane 7-0 in the second-set decider.
That took the wind out of the sails of Wozniacki, who eventually succumbed to a 7-5 6-7 4-6 defeat after just under three hours on the Grandstand court.
Cirstea will play either Jelena Jankovic or Sharon Fichman in the next round.
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