Great Britain had to settle for silver in the men's team pursuit after failing to defend their title on day one of the World Track Championships in Minsk.
The British quartet of Ed Clancy, Steven Burke, Andy Tennant and Sam Harrison finished behind Australia in the 4km event.
Becky James and Vicky Williamson took bronze in the women's team sprint.
James, 21, and Williamson, 19, clocked 33.893 seconds to finish ahead of Australia in the bronze medal ride-off.
Germany's Kristina Vogel and Miriam Welte added the world crown to their Olympic title with a time of 33.053.
China's Gong Jinjie and Guo Shuang had to settle for silver.
More to follow.