Novak Djokovic, fiancee Jelena Ristic expecting first child

Former world number one Novak Djokovic has announced that his fiancee Jelena Ristic is pregnant with the couple's first child.

The pair, who have been in a relationship for more than eight years, confirmed their engagement in September last year.

The Serbian has taken to Twitter to reveal that the couple will become parents "soon".

Jelena is pregnant!!!We will be parents soon! #blessed Postacemo roditelji uskoro!!! #najsrecniji @JelenaRisticNDF pic.twitter.com/8WG1hocGIk

— Novak Djokovic (@DjokerNole) April 24, 2014

The news comes after Djokovic was beaten by Roger Federer in last week's Monte Carlo Masters semi-finals.