The chips were added by Wilson and Zebra (which previously used similar tags for tracking supply chain items) in 2017. They weigh about 3.3 grams, adding 1% to the weight of each ball.

So why do we still use chain markers and blurry goal line replays? pic.twitter.com/eVHqd6uEiy

— ✏️Jacob Feldman (@JacobFeldman4) January 16, 2023