Two prospects from the U.S. Ski Team were killed in an avalanche Monday while skiing near their European training base in the Austrian Alps. The team said Ronnie Berlack, 20, and Bryce Astle, 19, died in the incident near the Rettenbach glacier in the mountains over Soelden, the venue for the annual season-opening World Cup races. Berlack, from Franconia, New Hampshire, and Astle, from Sandy, Utah, were part of a group of six skiers who were descending from the 3,056-meter Gaislachkogel when they left the prepared slope and apparently set off the avalanche.