Why footballers are wearing "sports bras" at FIFA World Cup 2022

Since that celebration from the South Korean striker was widely shared on social media 

Many wondered about the reason behind the wearing of this piece of clothing by the footballers

Few even questioned if Hee-Chan was wearing a woman’s sports bra. 

These sports bras are officially called the GPS tracker vest and are very common among male footballers. 

The vest has a GPS device connected to it which helps the experts understand the GPS readings of the player.

Reports have hinted that the data collected helps the team managers and trainers to learn details such as how fast or far a player ran during training or a match.

 The GPS data is not restricted to the Football. Several other sports such as Basketball etc. have used this technology

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