Every day we will bring you 10 things to look for from the BNP Paribas WTA Finals Singapore presented by SC Global - stats, nuggets... get your fix on all of that for Day 3, right here!
(Singles play begins at 4pm Singapore time - see TV listings here)
(1) Serena Williams (USA #1) vs (4) Simona Halep (ROU #4)
Head-To-Head: Serena leads Halep, 3-0
1) Whoever wins this match will be in a very nice position in the Red Group...
Both Serena and Halep won their first round robin matches on Monday - Serena against Ivanovic, Halep against Bouchard - so whoever wins this match will have a leading 2-0 record in the Red Group.
The winner could also qualify for the semifinals today, depending on the second match - stay tuned...
2) Serena is going for her 50th match win of the year.
Serena is trying to become just the second player this year to reach 50 WTA-level match wins. The first player to do it is Ivanovic, who has 56 coming into today - she'll go for her 57th in the night session.
3) Halep has never beaten a World No.1 - or a World No.2, or a World No.3.
Halep is going for what would be by far the biggest win of her career today. Until now, her best wins have come against World No.4s - Agnieszka Radwanska, twice, at Rome in 2013 and Doha this year. She's actually 0-8 lifetime against Top 3 players - and she hasn't won a set in any of those matches.
4) Serena dominates the pair's head-to-head.
Serena has won all three of the pair's previous meetings, the last two handily in straight sets last year. Their first meeting went to three sets, but that was just Serena's fourth match back from her year-long injury and illness lay-off. Halep is a much, much different player this season, however...
(5) Eugenie Bouchard (CAN #5) vs (7) Ana Ivanovic (SRB #7)
Head-To-Head: Bouchard leads Ivanovic, 2-0
5) Both of these players are trying to get on the board in the Red Group.
Bouchard and Ivanovic both lost their first matches, Bouchard to Halep and Ivanovic to Serena. But with the round robin format, even when one of them loses today, all hope is not lost - players have qualified for the semifinals with 1-2 records before (most recently Jelena Jankovic last year).
6) Two days ago Bouchard became the highest-ranked Canadian in tennis history.
She was already the equal-highest-ranked Canadian in tennis history, male or female, with a career-high of No.6 - Milos Raonic hit No.6 on the ATP World Tour rankings earlier this year. But by moving up to No.5 on this week's WTA Rankings, Bouchard is now the standalone highest-ranked Canadian ever.
7) Ivanovic has had some trouble with Top 5 players lately.
It's almost fitting that Bouchard just rose to No.5, because that's right inside the ranking class Ivanovic has struggled with the last few years. Though she does have 14 career wins over Top 5 players, Ivanovic has lost 19 of her last 20 matches against them - the only win in that stretch came at theAustralian Open earlier this year when she beat Serena (who was ranked No.1 at the time).
8) Bouchard has never lost to Ivanovic.
Bouchard has beaten Ivanovic in both of their previous meetings, both of those meetings coming at Grand Slams, at Wimbledon in 2013 (straight sets) and the Australian Open this year (three sets).
And it's not only singles today...
9) The first match of the day is doubles.
Ekaterina Makarova and Elena Vesnina will play Alla Kudryavtseva and Anastasia Rodionova in the first match of the doubles event. Makarova and Vesnina are the favorites - they're the No.4 seeds, they were finalists here last year, and they're two-time Grand Slam winners.
10) The last match of the day is doubles too.
Hsieh Su-Wei and Peng Shuai kick off their last tournament together against one of the breakthrough doubles teams of the year, Garbiñe Muguruza and Carla Suárez Navarro. Hsieh and Peng aren't just the No.2 seeds and defending champions, they're 2-1 against the Spaniards.