Colorado: Center Matt Duchene
Duchene leads all NHL players in faceoff win percentage at 62.7 percent, and if he holds on, will become the first Avs player to lead the league in that category. He'll also shatter the single-season Avalanche record set by Andrei Nikolishin in 2003-04 (58.1 percent). Duchene has 16 points (seven goals, nine assists) in 29 career games against the Blues, which is tied for eighth in Avalanche history for points against St. Louis.
St. Louis: Left wing Vladimir Sobotka
Sobotka is slated to make his highly-anticipated season debut against the Avs on Sunday, his first NHL contest since the 2013-14 campaign, when he registered 33 points in 61 games and finished with the league's second-best faceoff success rate at 61.9 percent. On Thursday, the Blues announced that Sobotka had returned to the team to fulfill his one-year obligation and signed a three-year contract extension. He spent the last three seasons with Omsk Avangard of the KHL, where he posted 102 points in 138 regular-season games. Sobotka skated on one of the Blues' top lines and on the No. 1 power-play unit in Saturday's morning skate at PNC Arena but didn't play.