SBOBET are celebrating four years as West Ham United's principal partner with an exciting competition.

One of the world's leading online gaming brands, SBOBET have enjoyed a successful partnership with the Hammers since the pair joined forces in December 2008.

Since then, SBOBET have provided valuable support to the club by way of shirt sponsorship, the SBOBET Player of the Month competition and a host of competitions, draws and giveaways to supporters.

To celebrate the partnership's fourth birthday, SBOBET and West Ham have joined forces to offer a £100 Hammers store voucher to one lucky supporter.

The voucher will be awarded to the fan who sends the best photograph of themselves supporting the Hammers while wearing SBOBET-sponsored Macron replica kit or trainingwear.

To enter, please email your photograph to mediacompetitions@westhamunited.co.uk

Entries will be published on West Ham United's official Facebook page, with the winning entry being picked by SBOBET.

The closing date for entries is 12noon on Monday 10 December 2012, with the winner being announced on whufc.com

Terms and conditions are available on request.

SBOBET