Where To Stream Hard Knocks Season 20 Episode 4

The official roster cut-down day in the NFL. However, with those roster decisions more likely to be detailed in the final episode, Episode 4 opened with McDermott guiding a late-preseason practice, with the Bills' staff also highlighting what they look for in players to keep them on the roster. "Hard Knocks" then takes a look at bio-mechanic systems and cameras that are used to break down the Bills quarterbacks' arm motions, including Josh Allen's. Wide receiver K.J. Hamler is once again...