Colin Wilson, F: Acquired in a trade from the Nashville Predators on July 1, Wilson adds depth at the center position. The 27-year-old had 35 points (12 goals, 23 assists) in 70 games last season. He also had six power-play goals, which could help improve a man-advantage that was 30th in the League last season (12.1 percent). … Jonathan Bernier, G:The unrestricted free agent signed a one-year contract July 1 and will serve as Semyon Varlamov's backup. Given Varlamov's injury history, Bernier, 28, could see comparable usage compared to last season, when he made 33 starts with the Anaheim Ducks. Bernier was 21-7-4 with a 2.50 goals-against average, a .915 save percentage and two shutouts, including a stretch between March 7 and April 9 that saw him go 11-0-2 when John Gibson was injured. ... Nail Yakupov, F: The No. 1 pick in the 2012 NHL Draft, Yakupov, 23, had nine points (three goals, six assists) in 40 games with the St. Louis Blues after being traded from the Edmonton Oilers on Oct. 7. He was a healthy scratch for most of the season but will look to bounce back with the Avalanche and earn a top-six role. ... David Warsofsky, D: Signed as an unrestricted free agent on July 1, Warsofsky, 27, had one assist in seven games with the Pittsburgh Penguins last season, and 47 points (16 goals, 31 assists) in 58 games with Wilkes-Barre/Scranton of the American Hockey League.