Bill O'Brien on flap with Larry Izzo: 'There's conversations that happen on the sideline'

Texans coach Bill O'Brien was visibly irate on the sideline Sunday, directing his anger at special-teams coordinator Larry Izzo.

The Texans had just 10 players on the field for the second-half kickoff, raising the ire of O'Brien.

Special-teams ace Brian Peters and strength and conditioning coach Craig Fitzgerald went over to O'Brien to attempt to calm down the fiery head coach.

Following the Texans' 20-13 victory over the Detroit Lions, O'Brien initially didn't acknowledge the outburst.

"I don't know what you guys are talking about," O'Brien said. "No idea."

When told there was video capturing the incident that went viral, O'Brien replied: "I don't remember that one bit."

When a reporter asked O'Brien if it was an impostor on the sideline instead of him, O'Brien said: "I mean I don't know. There's conversations that happen on the sideline. That's just kind of the nature of the game."