Former Raiders coach Jon Gruden has taken another step to try to avoid arbitration in his case against the NFL.

Gruden, who is known best for his time with the silver-and-black, ditched those colors on Sunday and was seen in St. Joseph, Missouri, wearing Chiefs red. That’s because Gruden was at training camp where he watched the Raiders’ former rivals prepare to go for a third straight Super Bowl title.

ST. JOSEPH, Mo. — The Kansas City Chiefs frequently have guests at training camp, and this season brought a very familiar one. Former Las Vegas Raiders head coach Jon Gruden attended training camp on Sunday for the team’s light, unpadded practice.

Jon Gruden has become known as somewhat of a chameleon over the years. Seemingly changing his stripes depending on his company. And certainly behaving differently in the public eye than he did behind closed

There are some rivalries in the NFL that run so deep that it feels odd to see the key figures on either side of the rivalry interacting in a manner that is even remotely positive or friendly. It doesn’t always work like this,