The square thing on the back of rugby shirts is a wearable technology that collects physical data points such as distance covered and speeds reached. This device is commonly referred to as a GPS tracker, although it contains other measuring devices. The padded casing surrounds the unit, which is designed to sustain collisions and scrums. The system helps coaches keep tabs on various aspects of their players’ performance such as speed, distance covered, and tackles made. The GPS tracker provides detailed performance data that can be used to analyze and improve a players performance. The device is also used to manage a players workload to make sure that they stay healthy and able to perform at their peak for the entire season.