John Hackworth can't forget the first time he saw Andrew Carleton. It was November 2014, and Hackworth was running his first camp as the new coach of the United States Under-15 boys' squad.
Early in the session, Carleton, whom Hackworth hadn't seen play before the camp, took a long, diagonal pass from across the field. With time and space, Carleton had a chance to play it forward, the type of smart and simple play a manager would appreciate. He didn't. At the last second, Carleton jumped up and contorted his torso. The ball slammed off his back, leading to a turnover.