Illinois joins a growing number of football programs that use GPS technology for 'smarter' practices. But for some players, it's all about speed. - Chicago Tribune
Amazon.com: STATSports APEX Athlete Series - Soccer GPS Tracker - Official Partners of US Soccer
How clubs use GPS to find top level
A smart vest that tracks footballers' performance on the pitch - Design Week
The technology that can help players avoid injury | Sport | The Times
GPS Vest & Accessories | JOHAN Sports GPS Tracking System
APEX Athlete Series - USR Edition
Why are the players wearing sports bras?!" | An answer to the burning question | New England Revolution
STATSports | How a Premier League side uses GPS tracking to improve performance and minimise injury
Wearable tech in sport: the legal implications of data collection - LawInSport
How GPS tracking is changing football | The Economist
GPS Vest & Accessories | JOHAN Sports GPS Tracking System
Tennis players embracing technology and analytics in training
Matt Bloomfield explains why GPS tracking devices work - BBC Sport
Polar Team Pro | Wearable GPS athlete tracking and performance analysis | Polar USA