Three rising sophomores on the Colorado College hockey team, Ben Copeland, Bryan Yoon and Erik Middendorf are skating at National Hockey League development camps this week.
 
Copeland is with the Stanley Cup champion St. Louis Blues, Yoon with the Buffalo Sabres and Middendorf with the Arizona Coyotes.
 
The Coyotes started their camp on Monday, June 24, the Blues began on Tuesday, June 25, while the Sabres will open camp on Wednesday, June 26.