I don't see the issue. DAZN is an online streaming. You can literally have the fight on your computer or phone while having the game on your TV...which is exactly what I'll be doing.
Also based on time difference, there is a solid chance the fight will be going on during the 1st quarter of that game.
And lastly, I don't think they care much about what is going on in the USA. Both fighters are not American. One is Mexican and the other is from the UK. Sure the fight will do just fine in the countries they care about for this fight.