Short track: Fontana wins gold in 500m

GANGNEUNG, South Korea (Reuters) - Italy’s Arianna Fontana won the Olympic women’s 500 metres race on Tuesday after a photo finish with home favorite Choi Minjeong who was later disqualified. Fontana, 27, had won four bronze and one silver medal in previous Olympics but never topped the podium. She finished in 42.569 seconds ahead of Yara van Kerkhof of the Netherlands and Kim Boutin of Canada....