Maria Sharapova rounded out the quarterfinals of the Sony Open Tennis in Miami by beating Klara Zakopalova 6-2 6-2 after failing to convert four match points in the final game that had five deuces. This is Sharapova’s eighth appearance at the tournament and she played the finals four times but never made it to the winner’s trophy. Her quarterfinal will be a rematch of her recent Indian Wells quarterfinal – she faces Sara Errani, who lost the first set of her fourth-rounder against Ana Ivanovic in quick 23 minutes, before working her way to a 1-6 6-4 6-2 victory. Sharapova is 3-0 against Errani, including her 7-6(6) 6-2 win at this month’s Indian Wells.

Quarterfinal pairs: Serena Williams (1) vs. Li Na (5), Agnieszka Radwanska (4) vs. Kirsten Flipkens (30), Sara Errani (8) vs. Maria Sharapova (3), Jelena Jankovic (22) vs. Roberta Vinci (15). (source: WTA Tour, photo: © Neal Trousdale)

Just two winners in the first set, contrasted with 18 unforced errors, ensured that Serena Williams found herself trailing Dominika Cibulkova 2-6 and her inability to pull herself together made her lose four more games to winning just one in the second set. But from 2-6 1-4, Serena's internal dialogue got her mental control back, which naturally translated into great play, and she won 11 of the last 13 games of the fourth-round match at the Sony Tennis Open in Miami. Final score: 2-6 6-4 6-2.

Serena is famous for many things, but her ability to swing into higher gear definitely tops the list. Serena is the only player to have won three Grand Slam titles while saving match points on the way. Moreover, she is 21-20 since 2009 when losing the first set.

I’ve been down worse. It’s nothing new. Just keep fighting. I never give up. Doesn’t matter whether it’s in life or on the tennis court, I keep fighting.

As for Cibulkova, in the same round of the same tournament last year she also faced a world No.1 player, then it was Victoria Azarenka, and Cibulkova also had a good initial lead, 6-1 5-2, before falling to the Belarusian 1-6 7-6(7) 7-5 in the absolute thriller. (photo: © Neal Trousdale)

Victoria Azarenka's scream will be absent from the courts of this years Sony Open Tennis in Miami, as she's withdrawn ahead of her opening match due to a lingering ankle injury that made her withdraw before her Indian Wells quarterfinal against Caroline Wozniacki this month, but her boyfriend Redfoo made sure that the scream is there even when Vika is not playing. His new song entitled "Heart of a Champion" includes the famous grunts at the 1:25 mark and later at the 3:20 mark. You can listen to it here.

It takes the heart of a champion, the fist of a fighter, going the distance to be the survivor.

Azarenka is 17-0 this year with two titles, but has withdrawn from three events. Her replacement in the Miami draw Lauren Davis got from being a lucky loser to becoming a lucky winner, beating Madison Keys 6-1 5-7 7-6(7) in the second round, after trailing 3-6 in the tiebreak and saving three straight match points thanks to Keys' unforced errors.

More in Azarenka news, she took some glamor pics for her new sponsor Red Bull in a New York hotel room, during her stay in the city for the BNP Paribas Showdown earlier this month.

While in Miami, Vika attended the famous Player Party in a daring funky outfit which would've been your average mini skirt and top for ladies' night out, but Vika accompanied it with a see-through gown. Strange, but works on Vika! Also, the Belarusian world No.3 visited children’s hospital in South Florida, signing autographs and posing for photos with children.

Today at the Sony Open Tennis in Miami Li Na played her first match since injuring her left ankle in the Australian Open final a month and a half ago and the comeback was successful, a 6-3 6-1 victory over world No.42 Kiki Bertens. The fifth-seeded Li won the second-round match without dropping serve, ending it with ten straight points won. The Chinese is happy with how her game worked today and said she entered the encounter excited rather than nervous.

World No.1 Serena Williams was another highlight of the day, beating Flavia Pennetta 6-1 6-1. The match was less straightforward than the score suggests. Serena faced seven break points, but amazingly defended them all, and earned as much as 18 break points on Pennetta's serve, but the Italian's percentage of saving them was not as good as her opponent's and she was broken six times to lose the match in one hour and 17 minutes. Serena was playing her first match since becoming WTA No.1 again.

Fourth seed Agnieszka Radwanska had a quick passage into the third round, beating Hsieh Su-Wei 6-3 6-2, while seed No.7 Petra Kvitova and seed No.9 Caroline Wozniacki both battled from a set down: Kvitova to beat Peng Shuai 5-7 6-2 6-2, Wozniacki against Karolina Pliskova 5-7 6-3 6-3. (photo: © Neal Trousdale)

In September 2012 we learned the Justine Henin and her partner Benoit Bertuzzo were to become parents in spring and today that moment has arrived: this afternoon, on March 20th, the retired seven-time Grand Slam champion gave birth to a healthy little girl named Lalie. It is her first child.

Just hours ago, Justine announced on her official Facebook page:

Nous l'attendions tellement, ça y est, cet après-midi une petite fée est venue illuminer notre vie… Elle s'appelle Lalie, est en pleine forme et nous sommes fous de joie! Justine et Benoit.

We've been expecting it so much, it's here now, this afternoon a little fairy has arrived to brighten our lives… Her name is Lalie, she's healthy and we are thrilled! Justine and Benoit

The 30-year-old Justine met Benoit in early 2011 via a mutual friend. Previously, she was married to Pierre-Yves Hardenne, from 2002 to 2007, but they didn't have children. (photo: Ralf Reinecke)