"I was happy with my overall game (in the first half of the season)," he said. "I knew it was going to come at some point, but also I'd never been a part of that big of a goal drought, so, yeah, it was frustrating, but I just kept on working."
He has 286 points (145 goals, 141 assists) in 615 regular-season games during nine seasons, all with the Blues.
Berglund helped St. Louis reach the Western Conference Final last season with nine points (five goals, four assists) in 20 Stanley Cup Playoff games. The Blues lost to the San Jose Sharks in six games.
St. Louis selected Berglund in the first round (No. 25) in the 2006 NHL Draft.
"I have very high expectations of myself and I'm never satisfied," Berglund told the newspaper. "I still want to get better, I still want to challenge myself, I want to challenge the guy that I play against to beat me, and that mindset will hopefully be around until the day I quit. As long as that thing is there, I feel like I will for sure be able to be a good player and keep growing."