On Saturday afternoon, some of the greatest rugby players in the world will be gracing Twickenahm's hallowed turf to compete in the heroes rugby challenge - a huge fundraising initiative to support Help for Heroes (H4H).

Being broadcast live to the troops in Afghanistan, one Fulham serviceman who was seriously injured after driving over two land mines, is calling on the public to show their pride and support by helping to fill the stadium.

Wandsworth Bridge Road resident, Adam Cocks, was integral in organising the inaugural challenge after he was flown back to Britain from the Helmand Province in 2008.

While recovering in Headley Court, the charity's rehabilitation complex, the idea of a charity rugby match was born.

Along with his friend and former England player Simon Halliday and rugby correspondent for The Times, Mark Souster, the trio set about organising the event, and within a matter of months, the idea had completely snowballed, catching the attention of the Rugby Football Union (RFU) who stepped in and offered Twickenham as the venue.

Three years later and the second match, pitting a H4H Northern Hemisphere XV - managed by ex-England players, Lawrence Dallaglio and Jason Leonard - against an all star Southern Hemisphere XV, will be kicking off on Saturday at 4.30pm.

The 28-year-old, said: "This is more than just a match - it's about raising money for the wounded soldiers, not just ours but the antipodean ones. So I'm urging people to come and support them. While it's being played it's being broadcast to an operations centre in Afghanistan to troops who will have literally just come out of battle. We don't want them to see any empty seats, we want to send them a nice message. Last time we had around 55,000 people attend and we raised just under £1.5m for H4H, so we would like to achieve the same sort of thing. It was incredibly emotional, the players were so proud to be playing for the troops."

Previously a city analyst, Adam joined the Territorial Army in 2007 before being deployed to Afghanistan with the Honourable Artillery Company.

Adam sustained his injuries when his military vehicle drove over a land mine near the town of Musa Qala in January 2008. After being put in a rescue vehicle, he was blown up again, suffering a shattered knee and several shrapnel injuries.

He has been receiving treatment at Headley Court for the past three and a half years, and will continue to receive rehabilitation at the charity's personal recovery centre, Tedworth House, once he leaves the army in December.

Money from the match will go to the House which helps servicemen and ex-servicemen adjust to the next stage of their life.

Adam is to undergo what he hopes will be one final operation to lengthen his damaged leg just days before Christmas.

A special 2-4-1 deal is now on offer through Ticketmaster, making the starting price for tickets £15 or £10 for juniors. Tickets will also be available to buy at the stadium.

For more information, visit www.heroesrugby.org.uk