PONTIVY, France, June 28 (Reuters) - Slovenian Primoz Roglic, one of the top favourites to win the Tour de France, suffered a heavy crash during the third stage, a 182.9-km ride from Lorient on Monday. Last year"s runner-up Roglic fell heavily on his left side with 10 kilometres left and suffered bruises. His Jumbo-Visma team mates gathered to try to pace him back to the main bunch.