How do unions fight back against companies? How do strikebreakers impact this power?

Using the idea of major league baseball, explain why soccer clubs wanted to start a European Super League? Who would be the winners of theEuropean Super League? (think about the stakeholders) Who would be the losers? (think about the stakeholders)

Game theory: What should the players union do (strike be tough or give in)? What should the owners do (strike be tough or give in)? Assume that being if both parties are tough it will lead to a strike and if one is tough and the other gives in then it will benefit greatly the one that is tough.