Strap these sensors to your shoes to play soccer better

What makes the difference between a good soccer player and a great one? Players regularly train with GPS sensors strapped across their chests. Israeli sports-tech startup PlayerMaker makes a small device that tracks much more than GPS can. Worn on a player's shoes during training, its sensors and proprietary software detect every ball touch and build an accurate player "gait profile." "The sensors know if you make a pass, a run or interception," says CEO Guy Aharon.