Michaella Krajicek of the Netherlands plays with partner Dominic Inglot of Great Britain (not pictured) against Raquel Atawo of the Netherlands and Jean-Julien Rojer of the Netherlands on the third day of the US Open Tennis Championships at the USTA National Tennis Center in Flushing Meadows, New York, USA, 31 August 2016. The US Open runs through September 11. EPA/PETER FOLEY

Michaella Krajicek of the Netherlands hits a return as she and partner Heather Watson of Great Britain play Raquel Atawo and Abigail Spears of the US during their match on the fifth day of the US Open Tennis Championships at the USTA National Tennis Center in Flushing Meadows, New York, USA, 02 September 2016. The US Open runs through September 11. EPA/JUSTIN LANE

Michaella Krajicek of the Netherlands hits a return as she and partner Heather Watson of Great Britain play Raquel Atawo and Abigail Spears of the US during their match on the fifth day of the US Open Tennis Championships at the USTA National Tennis Center in Flushing Meadows, New York, USA, 02 September 2016. The US Open runs through September 11. EPA/JUSTIN LANE

Michaella Krajicek of the Netherlands as she and partner Heather Watson play Raquel Atawo and Abigail Spears of the US during their match on the fifth day of the US Open Tennis Championships at the USTA National Tennis Center in Flushing Meadows, New York, USA, 02 September 2016. The US Open runs through September 11. EPA/JUSTIN LANE

Michaella Krajicek of the Netherlands (R) as she and partner Heather Watson of Great Britain (L) play Raquel Atawo and Abigail Spears of the US during their match on the fifth day of the US Open Tennis Championships at the USTA National Tennis Center in Flushing Meadows, New York, USA, 02 September 2016. The US Open runs through September 11. EPA/JUSTIN LANE