One of the southern hemisphere’s top hopes for a medal at the Winter Olympics has tested positive for COVID-19 and will miss several World Cup races. Alice Robinson of New Zealand writes on Instagram, “Unfortunately I’ve tested positive to COVID- 19 this past week while at my base in Italy and have been in isolation since. … I’m doing fine and now I’m just aiming to recover as quickly as I can, and try to get back on the slopes as soon as possible.” Robsinon had to sit out a super-G in Val d’Isere, France, on Sunday and will also miss back-to-back giant slaloms at nearby Courchevel on Tuesday, and Wednesday. A former junior world champion, the 20-year-old Robinson has won three World Cup giant slaloms and finished fourth in the discipline at last season’s world championships in Cortina d’Ampezzo. Lara Gut-Behrami, the reigning world champion in giant slalom and …