Dak Prescott sparked the previously punchless Dallas passing game and celebrated Conor McGregor-style .
So did his Dallas teammates with the UFC star watching after some pregame pumping up.
Prescott threw two touchdown passes to Cole Beasley for a big halftime lead and rushed for a career-high 82 yards with another score in the Cowboys' 40-7 victory over the Jacksonville Jaguars on Sunday.
"It's definitely the best we've played from executing on offense and taking advantage of when the defense is giving us turnovers and good field position," Prescott said. "We were just feeding off each other. We felt it early. I don't know if it was Conor McGregor...