Germany’s Olympic champion ski jumper Andreas Wellinger has tested positive for the coronavirus two weeks before the Winter Games in Beijing, his federation (DSV) said Friday. The 26-year-old Wellinger, who won normal hill gold in Pyeongchang 2018, revealed his infection ahead of qualifying for the home World Cup weekend events in Titisee-Neustadt. Wellinger was still trying to book his ticket for Beijing having missed last weekend in Poland’s Zakopane with a knee injury and his Olympic dreams hang in the balance. “What shall I say? The knee is better, I have received medical approval that I c…