Draft Combine 360: John Ross and Mike Williams | Sport Science | ESPN

Get a sideline seat as the NFL Combine’s Fastest Man, Washington WR John Ross, goes through the ESPN Sport Science 20-Yard acceleration test. Then, follow Clemson WR Mike Williams as he goes through our “Y.A.C. Test,” avoiding heavy bags before diving into the end zone. Watch ESPN on YouTube TV: http://ow.ly/1YWF30aFCi3 Subscribe NOW to ESPN on YouTube: http://ow.ly/xjsF309WWdG Get more ESPN on YouTube: First Take: http://ow.ly/n47n30aLirR SC6 with Michael & Jemele: http://ow.ly/jXhw30aLiGv SportsCenter with SVP: http://ow.ly/upAm30aLiK4 This Is SportsCenter: http://ow.ly/dhu3309WWgH ESPN Must-See: http://ow.ly/VMLx309WWid ESPN Stories: http://ow.ly/3FiD30aLiQs ESPN on Social Media: Follow on Twitter: http://www.twitter.com/espn Like on Facebook: http://www.facebook.com/espn Follow on Instagram: http://www.instagram.com/espn Visit ESPN on YouTube to get up-to-the-minute sports news coverage, scores, highlights and commentary for NFL, MLB, NBA, College Football, NCAA Basketball, soccer and more. More on ESPN.com: http://www.espn.com