Kelly: Wiggins is mentally fragile

After only ten days of racing, Bradley Wiggins has held all of his promises and taken a firm grip on the yellow jersey of the Tour de France. The Brit has proven highly superior to his rivals in the time trial, and largely competitive in the mountains. While many observers therefore seem to think that the overall victory is already sealed, others reckon that Wiggins may still crack, keeping in mind the total length and challenges of the race, as well as other possible incidents that could make the Brit lose his focus and temper.