Postseason baseball is theater in the greatest sense. Taking the scale of sport’s longest season and distilling it down to a short series just ratchets up the intensity like nowhere else.

And this year, the bad blood between the teams in all four of the divisional series creates a soap opera like none other.

So today, MLB Insider, Jeff Passan, looks ahead at tonight's ALDS action and checks in on the vibes in the NLDS. And explains how hatred is okay, as long as you mind the line between tension and toxicity.

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