NFL 1st and Goal's Brian Webber and Eric Allen are joined by Chuck Nice and Dr. Eric Goff for the Playing With Science Checkdown. One of the biggest plays in Week 8 is made by one of the smallest players in the NFL. Tarik Cohen takes a screen pass for 70 yards all the way to the end zone. The intersection of sports and physics emphasizes Cohen's quickness and elusiveness in the open field.