You cannot pick a team more than once.
Once a team appears in your row, it is unavailable to you for the rest of that season.
Simple enough to explain.
Hard enough to win.
Ties count as a win.
If your chosen NFL game ends tied, you survive and advance to the following week.
The last player(s) eliminated takes home the pot.
If the final surviving group is eliminated in the same week, they finish as co-champions.