Prince Harry will be the patron of a charity race to the South Pole between three teams of wounded servicemen from around the world.
The 27-year-old royal, who last year joined a group of injured soldiers as they trekked to the North Pole, is now supporting the Walking With The Wounded SouthPole Allied Challenge 2013.
Groups of armed forces personnel from Britain, the US and the Commonwealth - who sustained physical or cognitive injuries in the line of duty - will take part in the brutal competition in November and December next year.
Depending on his military commitments Harry could dust off his skis to take part in the race, but St James's Palace said it was "far too early" to tell.
Prince Harry joined for part of last year's North Pole challenge A spokesman said: "The option is being kept open, but no decision has been made."
During the four-week Antarctic expedition the racers will trek a total of 210 miles, drag sledges weighing more than 68kg (150lb) and face extreme temperatures as low as -45C, along with savage 50mph winds.
The Allied Challenge to the South Pole will combine five charities for injured servicemen and women from across the globe.
It is not know if he will take part in next year's event Funds raised will be shared among the host organisation Walking With the Wounded (UK), Soldiers to Summits (USA), Soldier On (Canada), Soldier On (Australia) and Wounded Warrior Trust (New Zealand).
Selection weekends to pick the UK team will begin next month and a cold weather selection course is expected next March.
Injured servicemen from Britain, US and Commonwealth will take part Harry said earlier this year: "The vision behind Walking With The Wounded, to reintegrate wounded servicemen and women successfully into civilian life, recognises the unquenchable spirit and drive of those young people.
"It aims to harness their determination and energy, whilst adjusting their mindset to face the numerous challenges that lie ahead."
