MSNBC has a different take.

Colin Kaepernick holds his own workout, tells NFL owners and Roger Goodell to 'stop running'

https://www.msnbc.com/kendis-gibson/watch/colin-kaepernick-holds-his-own-workout-tells-nfl-owners-and-roger-goodell-to-stop-running-73610309863

ESPN:

Colin Kaepernick didn’t help himself with his workout – Chris Mortensen | NFL Countdown

https://www.youtube.com/watch?v=A8LSNMiseEA

This is a joke that could only exist in a poorly informed population.    And Colin does not want to play football.  A successful martyr makes better money with a lot less effort and no one trying to bash your brains in once a week.