Ski stars Mikaela Shiffrin and Petra Vlhova will not participate in Saturday’s parallel World Cup race in Lech/Zuers, Austria. The Keystone-SDA and AFP news agencies on Tuesday quoted Shiffrin’s coach, Mike Day, as saying that the American two-time Olympic champion was still suffering from back problems and has hardly been able to train since winning the season-opener two weeks ago. Overall World Cup winner Vlhova of Slovakia meanwhile wants to concentrate on the following two slaloms in Levi, Finland, November 20 and 21, according to the aktuality.sk portal.