Who would have thought that the minute Carolina Panthers quarterback Cam Newton and the Denver Broncos' Peyton Manning took the field in Super Bowl 50, they would both be playing in their last meaningful game? 

Professional sports are comparable to any other type of entertainment.

When Antonio Brown mocked Mike Tomlin as the Pittsburgh Steelers coach was addressing the superstar wide receiver going AWOL, it should have been the seminal moment of his NFL career.

Here was Colin Kaepernick's political statement in the National Football League, at least when he was still in the National Football League: He began to take a knee during the playing of the National Anthem. He did that and other players did that along with him in solidarity, and eventually the President of the United States called them SOBs because of it. The others didn't lose their jobs, at least not permanently. Kaepernick, who once had a pass in the air to win a Super Bowl for the 49ers, sure did.