Coach challenges Newton to improve ‘everything’

1:51 PM ET

CHARLOTTE, N.C. — Carolina Panthers coach Ron Rivera has issued a challenge for Cam Newton to be better than the quarterback was during his 2015 MVP season.

Newton threw a career-high 35 touchdown passes and rushed for 10 more in leading Carolina to a 15-1 regular season and ultimately the Super Bowl, but Rivera believes his sixth-year quarterback can be better.

And not in just one category.

“Everything,” Rivera said during Tuesday’s first practice of Phase 3 offseason workouts. “Last year we talked about developing certain throws and he did that. Can he develop and get better physically? Yeah. His skill set can continue to get better.

“I know they’re constantly working on his technique, his footwork, his delivery … and then again work on the mental aspect as well. I’m not putting anybody on blast. I’m just challenging him that he can become a better football player.”

Coach Ron Rivera said the …

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