Switzerland’s Michelle Gisin claimed back-to-back alpine combined gold while Mikaela Shiffrin’s Olympic nightmare continued when she crashed out yet again on Thursday. Gisin roared from 12th after the downhill leg to the gold with a courageous slalom run for Switzerland’s fifth alpine gold at the Games, after super-g bronze. Compatriot Wendy Holdener, a two-time world champion in the event, took silver 1.05 seconds behind after slalom bronze. The bronze went to Italy’s Federica Brignone, her second medal as well following giant slalom silver. Reigning world champion Shiffrin had a solid downhi…