Novak Djokovic and Roger Federer
Defending champion Novak Djokovic and Roger Federer can only meet in the final this yearReuters

Defending champion Novak Djokovic faces World No 33 Philipp Kohlschreiber in the opening round of Wimbledon 2015, while women's top seed Serena Williams opens her campaign against Russia's Margarita Gasparyan. Wimbledon 2015 starts on 29 June.

In the men's singles, heavyweights Djokovic and 2015 French Open champion Stanislas Wawrinka have been drawn in the top half, while Roger Federer joins Andy Murray in the bottom half of the draw.

Murray, seen as one of the big four, alongside Djokovic, Federer and Rafael Nadal, can only face the top seeded Serbian in the men's final on 12 July.

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The Scot, who became the first British player to win the men's crown since 1936, after he lifted the Wimbledon title in 2013, faces 27-year-old Kazakh Mikhail Kukushkin in the first round.

He is also in line to face Frenchman Jo-Wilfried Tsonga in the last 16, Rafael Nadal or David Ferrer of Spain in the quarters, and then seven-time Wimbledon Champion Federer in the semis.

The 33-year-old Swiss legend opens his campaign against lesser-known Bosnian Damir Dzumhur, while two-time champion Nadal faces a tough task to win his third Wimbledon crown having been seeded only tenth.

Nadal could face David Ferrer in an all-Spanish encounter in the fourth round. The former world number one faces Brazil's Thomaz Bellucci in the first round.

Last year's women's singles champion Petra Kvitova opens the defence of her Wimbledon title against Kiki Bertens of the Netherlands.

The top half of the women's draw looks all the more challenging as it includes big names like Serena, Maria Sharapova, Ana Ivanovic and French Open 2015 finalist Lucie Safarova, while the only big names in the bottom half are that of Kvitova, Caroline Wozniacki and Simona Halep.

The 2004 Wimbledon winner Sharapova faces Eastbourne quarterfinalist and British favourite Johanna Konta in the first round.

The Williams sisters, Serena and Venus, could also potentially meet in the fourth round.

Last year's Wimbledon finalist Eugenie Bouchard faces China's Ying-Ying Duan in her opening match, while British heart-throb Laura Robson, who has received a wildcard to participate in the Wimbledon this year, meets Evgeniya Rodina in the first round.

The top half of both the men's and women's singles draw will play on Monday while the bottom halves play on Tuesday.