PARIS (Reuters) - World number one Justine Henin completed a rare French Open hat-trick by crushing Serbia's Ana Ivanovic 6-1 6-2 in the women's final on Saturday.

Belgian Henin totally dominated her 19-year-old opponent, seeded seventh, to become the first woman to win three successive Roland Garros titles since Monica Seles in 1992.

Ivanovic, the first player representing Serbia to feature in the final of a grand slam tournament, challenged the top seed in the first couple of games but then collapsed.

The 25-year-old Henin, who also won here in 2003, soon took control and stayed on top until sealing victory with a forehand volley on the first match point after 65 minutes of a one-sided contest.

Back at her best after the breakdown of her marriage and her subsequent withdrawal from this year's Australian Open, Henin looked far too strong for Ivanovic, who crushed world number two Maria Sharapova in the semi-finals.

"I was a bit tense at first but then everything went well," said Henin, who did not drop a set in the tournament.

"I've been through difficult moments at the start of the year but I fought to get over them and now I'm really enjoying myself again," she added.

"When I was little girl, I never dreamed this would happen to me."