The National Football League is feeling the impact of the "Trump Effect."

Ticket sales since he called on team owners to fire players who take a knee to protest the National Anthem have cratered.

The online ticket reseller TickPick told Secrets that sales have dropped 17.9 percent, far more than the usual Week Three fall.

From TickPick:
  • 17.9 percent decrease in NFL orders this week compared to the previous week.
  • Last year the drop was 10.8 percent in orders on Monday & Tuesday following Week Three games.
"We have seen a massive decrease in NFL ticket purchases this past week in comparison to years past. Week 3 seems to usually have less ticket orders than week 2, but this year ticket purchases are down more than 7 percent from this time last year," said TickPick's Jack Slingland.