<p>Three-time Olympic medalist Kaillie Humphries sits comfortably in the lead after her first two runs in the women's monobob. The former Canadian Olympian is ahead of the pack by 1.04 seconds heading into the final heat. Her U.S. teammate and fellow Olympic medalist Elana Meyers Taylor is within striking distance in fourth place.</p><p></p><p>Defending curling champion John Shuster lost his second match in a row, falling to Canada's Brad Gushue 10-5. </p><p></p><p>Elsewhere, the International Skating Union joined the International Olympic Committee and World Anti-Dopping Agency against the Russian Anti-Doping Agency in relation to a positive drug test by Russian figure skater Kamila Valiyeva. A video hearing is scheduled to take place on Sunday night and a verdict is expected Monday.</p><p></p><p>The U.S. men's hockey team is in a good position heading into Sunday's game a