Bethanie Mattek-Sands skipped backward across the clay, her wagging tongue framed by a smile as she savored yet another surprising victory for American tennis at the French Open.
Rejuvenated by a rain delay, Mattek-Sands rallied past 2011 champion Li Na 5-7, 6-3, 6-2 Thursday in the second round at Roland Garros.
Following the second interruption of the match, Mattek-Sands swept seven consecutive games from Li to take a 5-0 lead in the final set. She served out the victory with the sun shining as rain fell.
"She's a champion, and I had to play some of my best tennis ever to beat her," Mattek-Sands said. "I'm really proud of myself that I was able to close out the match the way I did."
In men's play, six-time major champion Novak Djokovic gestured at threatening clouds between points, trying to keep them away, and managed to finish his drubbing of Guido Pella, 6-2, 6-0, 6-2. With five more victories Djokovic would become the eighth man to complete a career Grand Slam.
No. 3 Victoria Azarenka, the Australian Open champion each of the past two years, beat Annika Beck 6-4, 6-3.
By winning in the second round, Mattek-Sands matched her best effort at Roland Garros. She failed to qualify for the Australian Open in January and arrived in Paris with a 10-8 record this year and a No. 67 ranking.
"I was a little bit surprised today the way she's hitting," Li said. "Well done for her."
Li was ranked sixth. Since winning her lone major title, she has lost in the first or second round at four of the eight major events.
Mattek-Sands' best Grand Slam showing came at Wimbledon back in 2008, when she reached the fourth round. The 28-year-old Minnesota native is better known for her loud outfits, such as the one she wore at the finish against Li - a long-sleeve top over a neon tank, a black skirt, black sneakers and - as the piece de resistance - black knee-high socks.
"I haven't worn anything too crazy on court for a few years now," Mattek-Sands said. "I feel like my racket has been doing a lot of the talking."
Playing on cozy court 1, nicknamed the bullring, she appeared on the verge of defeat in the second set when rain prompted a 90-minute delay. She returned whacking winners, including a picturesque crosscourt backhand lob that gave her a break point and control of the final set.
Ten singles matches were postponed, including seven-time champion Rafael Nadal against Martin Klizan, and the all-American encounter between John Isner and Ryan Harrison.
Former No. 1 Jelena Jankovic won 12 consecutive games to beat the rain and Garbine Muguruza. Jankovic fell behind early but rallied past Muguruza 6-3, 6-0 shortly before showers interrupted the first matches of the day on 12 other courts.
A brief dry spell allowed 2010 runner-up Sam Stosur to complete a second-round victory over Kristina Mladenovic, 6-4, 6-3, before the rain resumed.
With temperatures in the mid-50s, Jankovic took the court wearing pink leggings and a long-sleeve pink shirt. She looked uncomfortable at the start, losing the first three games, then won the rest after adjusting to the strokes of Muguruza, a 19-year-old Spaniard.
"She's a great up and coming player," Jankovic said. "She hits the ball very hard, very flat. And especially in the beginning of the match she gave me a lot of trouble. I figured out the way to play against her, and I think I did pretty well."
Jankovic won with steady play from the baseline, while the big-swinging Muguruza committed 29 unforced errors. Jankovic, seeded 18th, is a three-time semifinalist at Roland Garros. She'll next play 2011 U.S. Open champion Stosur.