If Rex doesn't have an issue with him missing a bit of time to compete in the PanAm games, then neither do I. If he actually misses part of a season to go to the Olympics, that's another story. But that's a maybe, and in the future.
But this has nothing to do with him being injured. He gets injured mostly because of his slight stature. Might he bet a bit more muscular if he didn't compete in track? Maybe slightly, but nothing to really change the dynamics. I don't see him shying away from contact on the field to protect his track career. I really see this as a non-issue if his coaches and teammates are on board. Guys who don't seem committed to the team are typically ostracized by the team--and I haven't seen that in Marquise's case.
And Tasker butchers more than just the language. Anyone would be a fool to give him any inside info they are trying to keep secret.
And for the record, I think Goodwin is a bubble guy who just might be done with the team, and I'm fine with that. But I don't think his track interests play into it too much.