Colorado claimed Nieto off waivers from the San Jose Sharks on Jan. 5, 2017. He averaged 14:55 of ice time last season, including 2:17 per game shorthanded, third among Avalanche forwards behind Blake Comeau (2:31) and Carl Soderberg (2:25).
Selected in the second round (No. 47) of the 2011 NHL Draft by the Sharks, Nieto has 107 points (50 goals, 57 assists) in 338 games for the Sharks and Avalanche, and three goals and eight assists in 29 Stanley Cup Playoff games.