Watch: Vikings, Broncos trade 78-yard TDs in 3-minute span

The Minnesota Vikings and Denver Broncos exchanged 78-yard touchdowns in the span of about three minutes during the second quarter of Saturday's preseason game.

First, Vikings rookie running back Roc Thomas took a screen pass to the house.

Denver responded moments later with a 78-yard punt return touchdown, courtesy of second-year receiver Isaiah McKenzie.