Karolina Pliskova vowed not to turn her back on her all-or-nothing game despite it falling short in her three-set defeat to Angelique Kerber in Saturday's US Open final.

A fantastic year: 2 Grand Slams, Olympic silver medallist, new World No. 1! Congrats, @AngeliqueKerber #USOpen

Germany's Angelique Kerber began her reign as world number one in imperious style battling past a determined Karolina Pliskova 6-3, 4-6, 6-4 to win the US Open final on Saturday and claim her second grand slam title of the year.

Novak Djokovic scraps his way into the U.S. Open final for a seventh time with a confounding 6-3 6-2 3-6 6-2 win over enigmatic Frenchman Gael Monfils.

Reaching top of the world seems to agree with Angelique Kerber, who celebrates her ascension to the number one ranking with a 6-4 6-3 win over Caroline Wozniacki to advance to the U.S. Open final.

Serena Williams crashes out of the US Open, her semi-final defeat to Karolina Pliskova costing her a shot at a 23rd Grand Slam title.

World number one Serena Williams fends off spirited Simona Halep, downing the fifth-seeded Romanian 6-2, 4-6, 6-3 to reach the US Open semi-finals.

Swiss third seed Stan Wawrinka outlasts tiring former champion Juan Martin del Potro in four sets to advance to the semi-finals of the U.S. Open.

Simona Halep does something no one else was able to do against Serena Williams at the U.S. Open but still cannot not stop the world number one from advancing to the semi-finals.

Kei Nishikori stunned Andy Murray to reach the US Open semi-finals, holding his nerve in a breathtaking final set to move two wins away from becoming the first Asian man to capture a Grand Slam singles title.

Novak Djokovic's path to a 10th successive US Open semi-final has been a strange one, but the world number one isn't complaining.

Gael Monfils is back in a Grand Slam semi-final after an eight-year wait after pummelling fellow Frenchman Lucas Pouille 6-4, 6-3, 6-3 to reach the US Open last four.

Angelique Kerber reaches her second US Open semifinal on Tuesday with a 7-5, 6-0 win over Roberta Vinci which also edged her closer to the world number one spot.

Second seed and 2012 champion Andy Murray crushes Bulgaria's Grigor Dimitrov 6-1, 6-2, 6-2 to reach a sixth US Open quarter-final.

Serena Williams storms into the US Open quarter-finals in record-smashing style by easing past Kazakhstan's Yaroslava Shvedova 6-2 6-3 to claim her record 308th grand slam match win,

14-time Grand Slam champion Rafael Nadal crashes out of the US Open, falling in a five-set thriller to 22-year-old Frenchman Lucas Pouille.

Venus Williams moves within two wins of a possible sisterly showdown with Serena in the semi-finals of the U.S. Open by beating German 26th seed Laura Siegemund.

A tearful Nick Kyrgios, a dark horse to win the US Open, retires from his third-round match against Ukraine's Illya Marchenko with a hip injury.

Twice grand slam winner Stan Wawrinka rallies from 5-2 down in the second set to clinch victory over Italian Alessandro Giannessi and reach the third round of the U.S. Open.

Novak Djokovic, well rested after not playing since Monday, resumes his US Open title defence against fiery Russian Mikhail Youzhny, a two-time semi-finalist in New York.