Jessie Diggins opens Tour de Ski with first sprint win in three years

• American star surprised after Tour-opening sprint win
• Diggins, 33, is reigning World Cup overall champion

Jessie Diggins launched her bid for a third Tour de Ski title with a dramatic victory on Saturday in the opening 1.4km freestyle sprint in Toblach, Italy.

This was a huge surprise," Diggins said after her first World Cup sprint win in three years, a triumph that left the three-time Olympic medalist elated and surprised. I kind of thought I was getting old and not ready to have another sprint victory, so this was amazing."