Russian Dinara Safina won her first-ever WTA title after defeating Slovakian Henrieta Nagyova in the final of the Idea Prokom Open at Sopot.

Safina, the sister of world number two Marat Safin, took the first set 6-3 and became the youngest player this year to win a tour title when Nagyova retired hurt 4-0 down in the second set.

Nagyova started well breaking Safina's serve to love in the opening game but little went her way from then on.

Safina immediately broke back and quickly went into a 3-1 then 4-2 lead, serving out the set in just 35 minutes.

The Hungarian, suffering from an ankle problem, struggled in the second set and after going 3-0 behind took time out to have her left ankle heavily strapped.

And despite her best efforts she only completed one further game before deciding to retire.

After the match Nagyova explained: ``I've had trouble with my left ankle for the last month but yesterday's semi-final match with Tathiana Garbin, which lasted nearly three hours made it much worse.

``It hurt me after that match and all last night. I was prepared for the match with Safina today. I know she plays aggressively but I couldn't use my legs as I wanted to and was late for the balls.''

Safina seemed quite relaxed about her triumph and said: ``I still need to improve a lot. I can play at this level for an hour at the moment but to get to the top I have to be able to play for three hours.''

The 16-year-old added: ``It's great to have my first title and to be inside the top 100. Marat phoned me and I told him I had won and he was really pleased.''