The Kazakhstan biathlon team are cleared of doping after samples taken at the World Championships in Austria all returned negative.
The British biathlon team pull out of competing at a World Cup event in Russia following the country's doping scandal.
The men and women (and puppies) who stole the show for better or worse at Sochi 2014
Russia get the better of Germany in the men's 4x7.5km biathlon relay to win their first gold medal in the event.
Audio & Video
BBC Sport uncovers the science behind Winter Olympic sports.