Not sure if it was mentioned here already but it really fits in here, even though it's not a top club signing one of the big stars. DUX Internacional de Madrid, a club from the third Spanish League just signed David Barral. What makes this deal special, you might ask? Well, apparently it's been the first deal in professional soccer that was completely paid with crypto currencies. (Source: https://www.inspiredtraveler.ca/a-d3-club-buys-a-player-with-cryptocurrency/)