
Former world No. 1 Caroline Wozniacki continued her difficult start to 2016, losing her opening match at Wimbledon Tuesday.

The Dane lost 7-5 6-4 on Centre Court to Russian 13th seed Svetlana Kuznetsova, who next faces Tara Moore. The Hong Kong-born Brit is in the second round of a grand slam for the first time after beating Belgium's Alison van Uytvanck 6-3 6-2.

Wozniacki's friend Serena Williams had few problems in reaching round two, as the defending champion dispatched Switzerland's Amra Sadikov 6-2 6-4 on Centre Court to set up a clash with American Christina McHale.

In men's action, home hope Andy Murray began his bid for a second title on the hallowed grass courts with a straight-sets victory.

The second seed beat Liam Broady (pictured) as the 2013 champion faced his first all-British clash in his 11th appearance at SW19. Murray will next face Yen-Hsun Lu of Chinese Taipei.

Australian 15th seed Nick Kyrgios showcased both sides of his game with a lobbed "tweener" -- surely a contender for shot of the tournament -- followed by a code violation. Though 37-year-old opponent Radek Stepanek had soccer star Petr Cech cheering him on, Kyrgios -- just 21 -- won in four sets.

Kyrgios will play Dustin Brown in a second-round match that promises plenty of entertainment. The German wildcard, who shocked Rafael Nadal last year, delighted fans as he came from behind to beat Serbia's Dusan Lajovic in five sets.

Swiss fourth seed Stan Wawrinka set up an intriguing second-round clash with Juan Martin del Potro as he beat young American Taylor Fritz despite losing the first set. Injury-plagued former U.S. Open champion Del Potro, playing his first grand slam match since January 2014, defeated French veteran Stephane Robert.