Britain's Prince William will support Wales and Prince Harry England when they watch the Rugby World Cup on Saturday (26.09.15).

Britain's Prince Harry and Prince William

Britain's Prince Harry and Prince William

The royal is a vice-patron of the Welsh Rugby Union and revealed he will be firmly supporting them and needs a "win more than ever" when he watches the game with his younger brother.

William, 33, said: "Unfortunately, I will be watching you with my brother, so I will need a Wales win more than ever!

England and Wales have been drawn together in what has been called the 'Pool of Death' with two-time champions Australia.

But William is adamant the assembled team have the determination to win.

Speaking as he presented the Wales squad with their tournament caps in a ceremony at London's Guildhall on Monday (21.09.15), he said: "Whilst we have been dealt a very tough group stage, I firmly believe that, with a simple, determined, match-winning mindset, this (Wales) team can progress into the knockout stages and beyond."

Prince Harry, 31, will be supporting England but the second in line to the throne isn't too worried.

He said: "I look forward to having plenty to cheer about throughout the tournament."