What is another way to look at Puka's speed?

21.35 MPH = 31.31 ft. per second

40 yd. dash = 120 ft.

120 ft divided by 31.31 ft per second = 3.832

So Puka ran a 3.83/40 on that TD.

Some WR's run faster when they are being chased by 3 guys.