NHL Prospects: Four Potential Breakout Prospects For The Colorado Avalanche © Stan Szeto-USA TODAY Sports Up next NHL Rumors and Notes: Rasmus Ristolainen, Patrick Marleau, and John Tavares on Mitch Marner Published on 08/12/2019 Author Featurd Writer Looking at four Colorado Avalanche prospects that might be able to crack the Avs roster at some point this season.