Poor results in recent times led to split: Sania and Martina

In an unexpected development, Sania and Hingis decided to end their partnership that took the tennis world by storm last year when they won nine titles including the year-end WTA championship.

The duo said in a joint statement: "After three Grand Slam victories and eleven WTA doubles titles together, we have mutually agreed that we would each be open to playing with other players for the remainder of the season. Perhaps, because of our great past results, we have had very high expectations from our partnership and unfortunately did not get the results we desired recently. We would like to clarify that it was a totally professional decision based purely on our recent results."

Sania and the Swiss great began their partnership last year in March with a bang, winning three titles on the trot at Indian Wells, Miami and Charleston.

The pair clarified the split would not affect their "wonderful" personal relationship in any way.

"The professional decision has not and will not in any way affect the wonderful personal relationship that we continue to share. We also look forward to defending our title in the year-end WTA Finals in Singapore in October for which Santina has already qualified. We hope that this puts to rest some of the fabricated stories that have been doing the rounds in some sections of the media."

Sania became world number one in partnership with Martina when they won the Charleston event. Sania also enjoyed her first ever women's doubles Grand Slam title by winning the Wimbledon in company of Martina. Later, the pair also won the 2015 US Open.

After winning four titles at the start of the season, they have managed to win only one (Rome) after that in three finals.

They also failed to defend their Wimbledon crown. Last month's Montreal event happened to be their last tournament together, where they lost in the quarterfinals. In all they won 14 titles.