First off, the magic number is still at 2 with now 2 to go. Meaning if the Rays win out, they will still get home field advantage in Wednesday's Wild card game.
If the Rays win tomorrow the worst that can happen is the Rangers and Rays have a play-in game on Monday.
If a three-way tie happens, the Rays will have 2 shots to make it to the postseason per the scenarios announced by MLB today.
Also if the Rangers lose tonight the Magic number to clinch a playoff spot falls to 1.
The Rays are still in the drivers seat with 2 to play. There is no need to panic, but the Rays can really afford another loss. Should be a great weekend.