Well, like the OP is saying, it wouldn't be the very first cryptocurrency sponsorship in sports, and specifying - in european football. Wolverhampton Wanderers, which are playing in the Premier League right now (and they are playing wonderful football imo) are sponsored by CoinDeal for example.
I am very curious about this Michael Owen project, just because it's including Owen himself, lol.
The fact that Liverpool is looking for a sponsorship is obvious, just like every other team. They don't have massive sponsorship on a multiple surfaces like Man City and Etihad, like Arsenal and Emirates, so they have to seek further, but don't worry - it's a different business model, but the incomes are fine as well.
Last thing - "Sun misinterpreted" - The Sun is not a reliable source of info, cause they are more of a tabloid than sports-newspaper. They didn't misinterpreted this, they lied intentionally, just as many times before.
Hope that such deal will happen, maybe not between LFC and TRON accurately, but it would be nice to see such fine cryptocurrency being a sponsor of one of the biggest football clubs in the world.