wuhan - Canada's Eugenie bouchard withdrew from the wta wuhan Open Monday just hours before her first-round match, citing symptoms linked to the concussion suffered at the US Open earlier this month. The 21 year-old has not played since she pulled out of the US Open on September 7 with a head injury caused by a locker-room fall which saw her forfeit her fourth-round match against eventual finalist Roberta Vinci of Italy. "I travelled to wuhan with the intention of playing. Unfortunately, my concussion symptoms came back during practice on Saturday and it would not be safe for me to go on court today," bouchard said in a statement. bouchard was due to meet 18-year-old Belinda Bencic of Switzerland in the first round. Bencic now faces lucky loser Ajla Tomljanovic of Croatia.