Yes, there will be ups, with the potential of the offense particularly interesting, and Fields did have an up-and-down day on the practice field, but that is what training camp is about.

New York Jets quarterback Justin Fields was carted from the practice field Thursday morning with an apparent lower leg injury.

There is some hope, especially in the Jets’ building, that Fields has untapped potential, that he can be the quarterback to succeed in a way no Jets quarterback has in the last 14 years — as in, the ...