Novak Djokovic yet to decide date for wedding to Jelena Ristic

World number two tennis star Novak Djokovic has admitted that he and his fiancee Jelena Ristic are yet to decide on a wedding date.

The couple announced their engagement in September following an eight-year romance.

When asked at the Australian Open whether a wedding was close, Djokovic said on court: "We do not have a date yet, but we're looking forward to it. We're keeping it our little secret."

Djokovic was speaking after he secured a straight-sets win over Lukas Lacko in the first round of the competition in Melbourne.