The Oilers traded Yakupov to the Blues on Oct. 7 for forward prospect Zach Pochiro and a conditional third-round pick in the 2017 NHL Draft, which becomes a second-round pick in the 2018 NHL Draft if Yakupov scores at least 15 goals this season.
"I know this team (the Blues), and we've played against this team, and it was always hard to play against St. Louis," Yakupov said. "Some guys have played for this club for a long time and they pretty much have the same guys and are always doing well and it's really good to be part of it. I'm trying to enjoy hockey right now."
Yakupov, 23, played five seasons with the Oilers. He had eight goals and 15 assists in 60 games last season.
As the Oilers' third successive No. 1 pick (Taylor Hall, 2010; Ryan Nugent-Hopkins, 2011), Yakupov came under scrutiny in Edmonton. He scored 17 goals and had 14 assists in 48 games during his rookie season of 2012-13 playing for coach Ralph Krueger.
The following season under coach Dallas Eakins, Yakupov had 11 goals and 13 assists in 63 games with a plus/minus of minus-33. The following season, he had 14 goals and 33 points in 81 games and was minus-35.
On Wednesday, Yakupov was not interested in dredging up the past, instead wanting to focus on his future.
"I'm here [with the Blues] now and I don't want to talk about that," he said. "I'm here now and I'm just happy to be part of this group."