Canada’s Delbosco, Serwa win World Cup skicross; Rahlves of US fourth in men’s race

Errol Kerr of Jamaica was briefly knocked out when he crashed while leading his first heat and suffered an injured left shoulder. He was shaken but not deterred.

“That was extremely disappointing. I was in the lead,” said Kerr, who qualified fifth. “It was pilot error, something I don’t usually do, but I’ll be back to fight another day.