Alex de Minaur and Katie Boulter tied the knot on the last day of Wimbledon in mid-July. (Mark Evans/AAP PHOTOS)Alex de Minaur and Katie Boulter tied the knot on the last day of Wimbledon in mid-July. (Mark Evans/AAP PHOTOS) Credit: AAPNewly-weds Alex de Minaur and Katie Boulter are set to play their first major as a married couple after they were added to the US Open mixed doubles draw. Elina Svitolina and her husband Gael Monfils, who is expected to play his final Grand Slam event at the US Open have also entered. The mixed doubles takes place on August 25 and 26 before the main singles tournament begins on August 30.