Andy Murray has been seeded third for Wimbledon which gets under way at the All England Club on Monday.

Rafael Nadal, the world No 1, is the top seed, although the Spaniard's participation is not certain due to a knee injury, with Roger Federer second.

Dinara Safina is top seed in the women's singles ahead of Serena Williams and Venus Williams, the defending champion.

There was a strong case for Federer to be named top seed as Wimbledon officials employ a unique seeding system which takes into account previous results at the grasscourt championships and the Swiss has contested the last six finals.

But the committee opted to stick to the world rankings with Murray, Novak Djokovic, Juan Martin del Potro and Andy Roddick completing the top six.

Russia's Marat Safin was the main beneficiary after being bumped up from his world ranking of 23rd to 15th seed following his unexpected run to the semi-finals 12 months ago.

The only deviation from the world rankings in the women's seedings sees Maria Sharapova, the 2004 Wimbledon champion who is ranked 59th in the world, made the 24th seed.

Sharapova has plunged down the rankings after nine months out with a shoulder injury but reached the semi-finals of the WTA grass-court event in Birmingham last week.

The draw for the opening round takes place on Friday.

Men

1, Rafael Nadal (Sp)
2, Roger Federer (Switz)
3, Andy Murray (GB)
4, Novak Djokovic (Serbia)
5, Juan Martín Del Potro (Arg)
6, Andy Roddick (US)
7, Fernando Verdasco (Sp)
8, Gilles Simon (Fr)
9, Jo-Wilfried Tsonga (Fr)
10, Fernando González (Chile)
11, Marin Cilic (Cro)
12, Nikolay Davydenko (Russ)
13, Robin Söderling (Swe)
14, Gaël Monfils (Fr)
15, Marat Safin (Russ)
16, Tommy Robredo (Sp)
17, David Ferrer (Sp)
18, James Blake (US)
19, Rainer Schüttler (Ger)
20, Stanislas Wawrinka (Switz)
21, Tomas Berdych (Cz)
22, Feliciano López (Sp)
23, Ivo Karlovic (Cro)
24, Radek Stepanek (Cz)
25, Dmitry Tursunov (Russ)
26, Jürgen Melzer (Austria)
27, Philipp Kohlschreiber (Ger)
28, Mardy Fish (US)
29, Igor Andreev (Russ)
30, Viktor Troicki (Serbia)
31, Victor Hanescu (Rom)
32, Albert Montanes (Sp)

Women
1, Dinara Safina (Russ)
2, Serena Williams (US)
3, Venus Williams (US)
4, Elena Dementieva, Russia
5, Svetlana Kuznetsova (Russ)
6, Jelena Jankovic (Serbia)
7, Vera Zvonareva (Russ)
8, Victoria Azarenka (Bela)
9, Caroline Wozniacki (Den)
10, Nadia Petrova (Russia)
11, Agnieszka Radwanska (Pol)
12, Marion Bartoli (Fr)
13, Ana Ivanovic (Serbia)
14, Dominika Cibulkova (Slovakia)
15, Flavia Pennetta (It)
16, Zheng Jie (China)
17, Amelie Mauresmo (Fr)
18, Samantha Stosur (Austria)
19, Li Na (China)
20, Anabel Medina Garrigues (Sp)
21, Patty Schnyder (Switz)
22, Alize Cornet (Fr)
23, Aleksandra Wozniak (Can)
24, Maria Sharapova (Russ)
25, Kaia Kanepi (Est)
26, Virginie Razzano (Fr)
27, Alisa Kleybanova (Russ)
28, Sorana Cirstea (Rom)
29, Sybille Bammer (Austria)
30, Agnes Szavay (Hun)
31, Anastasia Pavlyuchenkova (Russ)
32, Anna Chakvetadze (Russ)