Hingis had split from short - time American partner CoCo Vandeweghe due to limited success together .
In February 2017 , Chan teamed up with former world No. 1 , Martina Hingis , for the women 's doubles competition at the Dubai Duty Free Championship .
Martina Hingis had split from short - time American partner CoCo Vandeweghe due to limited success together .
In February 2017 , Chan teamed up with former world No. 1 , Martina Hingis , for the women 's doubles competition at the Dubai Duty Free Championship .