Daily journal "Dziennik" says about Hingis & Kournikova ...
According to Polish daily newspaper "Dziennik":
"1800 seconds took Anna Kournikova to persuade Martina Hingis to play again together in US Open doubles competition. Those two, playing together, have triumphed twice in Australian Open doubles.
The Russian wants to comeback on courts after 3-year-absence caused by back injury."
If that's truth, it seems that Anna wants Martina to resume 'cooperation'.
But they didn't write was was the outcome of that persuading Martina...
Martina Hingis & Sania Mirza
2015 Doubles titles: 10 -
Brisbane, Indian Wells, Miami, Charleston, Wimbledon, US Open, Guangzhou, Wuhan, Beijing, Singapore
2016 Doubles titles:
Brisbane, Sydney, AO, St. Petersburg, Rome