TEMPE – Arizona Cardinals coach Jonathan Gannon never expected to be the star of a viral video. But his recent emotional altercation with running back Emari Demercado was a rare crack in the coach’s even-keeled public persona and evidence of growing frustration with a slow start to the season and a difficult stretch of the schedule ahead.

Gannon appeared to bump Demercado in the chest and chew him out during a disastrous 22-21 loss at State Farm Stadium Sunday to the previously winless Tennessee Titans. When he swung his arm, he forcefully connecting with the running back after officials ruled that Demercado released the ball before crossing the goal line, fumbling on what would have been a 72-yard scoring run that likely would have iced the game for Arizona. ×

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