Ben Hansen (left) watches data on a hand-held device as Pittsburgh Pirates prospect Matt Benedict throws a ball. Benedict is wearing sensors that recorded 39 sets of measurements.
Usain Bolt from Jamaica celebrates winning the gold medal in the men's 200-meter final during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil.
David J. Phillip/AP
Jacksonville Jaguars wide receiver Lamaar Thomas (center) is hit in the head by Tampa Bay Buccaneers linebacker Brandon Magee as cornerback Kip Edwards helps make the tackle a 2014 preseason game. Magee was penalized for the hit.
Phelan M. Ebenhack/AP