Denver Broncos' quarterback Bo Nix had an impressive rookie season, and this former Pro-Bowl quarterback Robert Griffin III believes he's now the most underrated quarterback in the NFL.

Robert Griffin III — who played parts of seven seasons in the NFL after being selected second overall in the first round of the 2012 draft by Washington — posted a highlight clip of Browns ...

Denver Broncos' quarterback Bo Nix had an impressive rookie season, and this former Pro-Bowl quarterback Robert Griffin III believes he's now the most underrated quarterback in the NFL.