ST. PETERSBURG, Fla.(AP) Dinara Safina (dee-NAR-ah sah-FEEN-ah) will overtake Serena Williams for the No. 1 ranking in tennis later this month.

The WTA Tour says Wednesday that Safina will rise to No. 1 for the first time in her career in the April 20 rankings.

Safina is the younger sister of former No. 1 Marat (Ma-RAT) Safin. They are the first brother-sister duo to be No. 1. She will become the 19th woman - and second Russian - to top the WTA rankings.

Safina was the runner-up at the 2008 French Open to Ana Ivanovic and at the 2009 Australian Open to Williams.