Peter Sagan disqualified from Tour de France for elbowing Mark Cavendish

VITTEL, France — World champion Peter Sagan has been disqualified from the Tour de France for causing a crash in a chaotic sprint finish that left Mark Cavendish needing treatment for his injuries and further examinations in a hospital. Nearly 50 meters, about 55 yards, from the end of Stage 4 on Tuesday, Sagan elbowed …