This practice jersey was worn while the Avalanche practiced before the 2016 Stadium Series game at Coors Field against Detroit.
There are two distinct black marks on the front of the jersey, loose threads on the arms and seams, and a loose thread above the R on the chest Reebok wordmark.
I haven't yet found any clear photomatches, but have narrowed down the possible players to MacKinnon, Bigras and Skille. This is based on the players assigned burgundy jerseys, pictures of other players that feature loose threads not present on this jersey, and the limited number of burgundy players who wore size 56 jerseys in the 2015-16 season.
