Phurba is Russell's most experienced Sherpa and his lead guide or "Sirdar." He has summited Everest an incredible 10 times and is Russell's eyes, ears, arms and legs on the mountain. Incredibly strong, even at high altitude, he is entrusted absolutely with the climbers' safety.

Last year, Phurba was on the spot to deal with Tim and Gerard's near mutiny on Summit Day. His calm in the face of an extremely difficult situation was clearly conveyed via the Sherpa Cam he wore on his helmet.

This year, Phurba will be attempting the double traverse with David Tait, an Everest first that will be undertaken as a partnership, reminiscent of Sir Edmund Hillary and Tenzing Norgay's historic triumph. Phurba is doing it at the suggestion and encouragement of Russell, who wants Phurba to get the recognition he deserves as an outstanding mountaineer.

Meet Russell's "Super Sherpa"