"I really felt that hockey was still always triggered in your mind, because you knew it wasn't over. It felt like there was no closure on the season," Allen told stlouisblues.com on Wednesday. "In (a typical summer), when the season is done, you win or you lose, you forget about it for a couple of months. This (time, it's) when are we playing, what's going on? You're always thinking about it. And a lot of guys probably feel the same way I do. You never really checked out, because there is unfinished business and there was no real closure on it."