The world tennis number one Caroline Wozniacki has continued her worrying run of form with an early exit at the WTA tournament in Cincinatti.
21 year old Wozniacki let slip a 5-1 lead in the second set, as she did last week in Toronto, losing 6-4 7-5 to the 19 year old American Christina McHale, the world number 76.
The Dane hasn't won a match since Wimbledon where she went out in the last 16, although she only returned to the tour last week after a month off with a shoulder injury.