We know what Vegas thinks will happen Saturday.

As of Saturday morning, the Ravens were favored by as many as 20.5 points — the largest spread in franchise history and one of the largest in the last few decades, period.

It’s easy to understand why: The Ravens have everything on the line. Win, and they claim the AFC North championship, the No. 3 seed and a home playoff game. The Browns, meanwhile, are starting Bailey Zappe at QB. He hasn’t thrown a pass this season and was last seen completing 12 of 30 passes, with two interceptions and seven sacks, in the Patriots’ final game of last season.