The best and perhaps most direct way for Kansas City Chiefs running back Louis Rees-Zammit, a speedster and former rugby star, to earn a spot on the initial roster is by excelling as a kickoff returner. However, he will also compete with Deneric Prince and Keaontay Ingram for the third RB spot on the depth chart this summer in training camp. "He's done above and beyond what I've expected," special teams coordinator Dave Toub said of Rees-Zammit in late May. The 23-year-old's chances of making...