Puck Daddy Viewing Guide: Blues, Blackhawks battle; Spezza out vs. Kings

Here is the Puck Daddy Viewing Guide: Spotlighting five things to watch for during tonight's slate of games. Make sure to stop back here for the nightly Three Stars when the games are finished.

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Preview: Montreal Canadiens at Calgary Flames, 8 p.m. ET.

Preview: Chicago Blackhawks at St. Louis Blues, 8 p.m. ET.

Preview: Ottawa Senators at Los Angeles Kings, 10:30 p.m. ET.

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Five things to know about tonight's NHL games ...

1. Will the Blues keep Blackhawks fans out?. Wednesday is one of those games where the Blues tried to keep Blackhawks fans out of Scottrade Center by restricting Windy City zip codes from purchasing tickets over the summer. Will some Blackhawks fans find their way into the building? Probably. It'll also be interesting to see just how many get through, especially with the Cardinals playing for their season not too far away at Busch Stadium.

2. George Parros is "almost symptom-free". The Canadiens tough guy is feeling better, according to general manager Marc Bergevin, but don't look for him back on the ice any time soon.

2. Flames need defensive focus. The Canadiens have scored seven goals in their two games, while the Flames have allowed 13 in three. Being ahead hasn't been easy for Calgary this season, who have blown 3-0 and 4-1 leads in separate games to start the season.

4. Jason Spezza is out. The Senators captain won't play tonight against the Kings. He's been practicing, but the team is being cautious. Between Bobby Ryan still goalless and now this, Ottawa is on the verge of panic.

5. Home sweet home for the Kings. Entering Wednesday night's meeting, the Kings have won seven of their last nine games against the Senators and are 11-1-0-1 all-time playing them at Staples Center.

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Bold Prediction: Blackhawks strike the first blow in their Central Division battle with St. Louis. 3-2 in a shootout.