How to spot a tackler who’s not the right fit for you

This is an extract from the April 2014 issue of Sports Illustrated, on sale now, which features the latest articles from the magazine and features exclusive interviews with some of the sport’s brightest stars.

Sports Illustrated: The Best of Sports is available from Apple, Amazon, Google Play, and more.

All images copyright © Sport Illustrated/Sports Illustrated Inc. Sports editor’s note: This is the first of a two-part series looking at the latest news from the world of football.