Live scoring: US Open - Day two

LIVE: Caroline Wozniacki v Chelsey Gullickson - Centre court

Women's number one seed Caroline Wozniacki opens her US Open campaign on centre court against Chelsey Gullickson of the USA.

DAY TWO WRAP:

Sharapova comes back to avoid upset

Djokovic sweats out a five-set win

Jankovic rallies to avoid early upset

MEN'S SEEDED WINNERS: First Round: No. 1 Rafael Nadal, No. 3 Novak Djokovic, No. 8 Fernando Verdasco, No. 10 David Ferrer, No. 19 Mardy Fish and No. 23 Feliciano Lopez

MEN'S SEEDED LOSERS: No. 16 Marcos Baghdatis, No. 24 Ernests Gulbis, No. 28 Radek Stepanek and No. 30 Juan Monaco.

WOMEN'S SEEDED WINNERS: First Round: No. 4 Jelena Jankovic, No. 7 Vera Zvonareva, No. 9 Agnieszka Radwanska, No. 11 Svetlana Kuznetsova, No. 14 Maria Sharapova, No. 15 Yanina Wickmayer, No. 18 Aravane Rezai, No. 22 Maria Jose Martinez Sanchez, No. 23 Maria Kirilenko and No. 25 Alexandra Dulgheru.

WOMEN'S SEEDED LOSERS: No. 8 Li Na, No. 26 Lucie Safarova and No. 30 Yaroslava Shvedova.

TOP PLAYERS ON COURT TOMORROW: Men: No. 4 Andy Murray vs. Lukas Lacko, No. 7 Tomas Berdych vs. Michael Llodra, No. 9 Andy Roddick vs. Janko Tipsarevic, No. 18 John Isner vs. Frederico Gil; Women: No. 2 Kim Clijsters vs. Sally Peers, No. 3 Venus Williams vs. Rebecca Marino, No. 5 Sam Stosur vs. Anastasia Rodionova, No. 6 Francesca Schiavone vs. Maria Elena Camerin, No. 12 Elena Dementieva vs. Sybille Bammer.

STAT OF THE DAY: Of the 317 points played in Novak Djokovic's five-set victory over Viktor Troicki, Djokovic won 159 while Troicki won 158.

QUOTE OF THE DAY: "Somebody from the stands kept saying to me, 'Hold on, try to hang in there,' and that's exactly what I did." - Novak Djokovic, who rallied to beat Viktor Troicki in five sets.

ON THIS DATE: Sept. 1, 1971: John Newcombe loses to Jan Kodes in four sets, becoming the first top-seeded man to lose in the first round of the U.S. Open.