Serena Williams reacts after winning the match point over Caroline Wozniacki. Al Bello / Getty Images
Serena Williams was hardly troubled by her rival, who had reached world No 1 status in the past without a grand slam to her credit still. Al Bello / Getty Images
Caroline Wozniacki had a good run to the final but a major title still eludes her. Mike Groll / AP Photo
Caroline Wozniacki of Denmark serves to Serena Williams of the United States. Al Bello / Getty Images
Caroline Wozniacki of Denmark serves to Serena Williams of the United States. CJ Gunther / EPA
Marin Cilic of Croatia celebrates with the trophy after defeating Kei Nishikori of Japan to win the men’s singles final. Alex Goodlett / Getty Images
Action during the men’s singles final. Charles Krupa / AP Photo
Marin Cilic, of Croatia, goes for a return shot against Kei Nishikori, of Japan, during the men’s singles final. Julio Cortez / AP Photo
Employees of Nissin Foods, who have an endorsement deal with Kei Nishikori, assembled in Tokyo for a large screening at 6m (local time) to express their support. Atsushi Tomura / Getty Images
Action during the men’s singles final with Marin Cilic serving in a cooler atmosphere with temperatures at the lowest for the tournament. Mike Segar / Reuters
A spectator watches in dismay as the challenge of Japan’s Kei Nishikori fell flat in a clash of the lowest-ranked finalists vying for the title. Kiyoshi Ota / Bloomberg
Marin Cilic, of Croatia, took centre stage in the limelight at the Flushing Meadows on Monday night. Mike Groll / AP Photo