Johnny Manziel praises Shedeur Sanders' Browns approach after stellar preseason debut: 'Continue to grind'

Johnny Manziel was once in Shedeur Sanders' shoes – a Cleveland Browns quarterback with high expectations and a national spotlight. 

Manziel was a Browns first-round pick in 2014 with the entire city of Cleveland hoping "Johnny Football" could spring life into a franchise desperate for consistency at the quarterback position. 

NFL fans know how that ultimately played out for the Browns and Manziel, but the 2012 Heisman Trophy winner has loads of optimism for Sanders, a fifth-round pick...