Vonn skied off the course about a quarter of the way into the opening run, joining all six of her U.S. teammates on the sideline. It was the first time since January 2008 that American women entered a World Cup slalom without any reaching the second round, the U.S. Ski Team said.

"It's just a little bit too icy for the girls. I don't think it does anyone a service to have it this difficult. It doesn't look good on TV," said Vonn, who lives in nearby Vail.

"It's essentially like pond ice," she added. "It's like ice skating, and it becomes - it's not ski racing anymore."

Zahrobska won the Aspen slalom for the second year in a row, finishing her two runs in 1 minute, 43.45 seconds.

Marlies Schild of Austria was the runner-up, 0.58 seconds back.

U.S. skier hurt. TJ Lanning has a fractured vertebra in his neck and a dislocated left knee from a crash during the season-opening World Cup downhill at Lake Louise, Alberta, the U.S. Ski Team said.

The 25-year-old Lanning, of Park City, Utah, has full movement, but his injuries are "clearly season-ending," team spokesman Tom Kelly said in Aspen.

Lanning was hurt Saturday and taken to a Calgary hospital.

Noteworthy. Finland's Hannu Manninen overtook Germany's Tino Edelmann to win the season's second World Cup Nordic combined event by 1.2 seconds in Kuusamo, Finland. . . . Armin Zoeggeler edged Wilfried Huber by 0.097 seconds to lead Italy to a one-two finish at a men's luge World Cup race in Igls, Austria. Tony Benshoof was the top U.S. finisher, placing 10th.