A video has surfaced of Arizona Cardinals coach Jonathan Gannon yelling at Emari Demercado after the running back's costly fumble against the Tennessee Titans on Sunday, Oct. 5.

And some are wondering if the Cardinals coach crossed the line with his response.

In the video, a livid Gannon appears to bump Demercado in the chest while yelling at him on the sideline, while the running back is being consoled by teammates.

As he leaves, Gannon then appears to slap Demercado, or "hit" him across the chest, according to the wording of some posts on social media. Reactions: Cardinals slammed on social media after loss to Titans, as ESPN anchor calls for firings Looking for a free mini puzzle? Play the USA TODAY Quick Cross now.

What led to Jonathan Gannon's incident with Emari Demarca

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