Former LSU WR Justin Jefferson Runs a Very Quick 40-Yard Dash [VIDEO]Former LSU WR Justin Jefferson Runs a Very Quick 40-Yard Dash [VIDEO]The 40-yard dash at the NFL Combine is usually one of the bigger measurables that people look at to translate to the NFL level, Justin Jefferson crushed it. Greg LarnerdGreg Larnerd
![Former LSU WR Justin Jefferson Runs a Very Quick 40-Yard Dash [VIDEO]](http://townsquare.media/site/37/files/2018/09/GettyImages-1043225338.jpg?w=980&q=75)
