Tom Ricketts says the owners invest their revenue in their teams:

“Here’s something I hope baseball fans understand,” Ricketts told ESPN. “Most baseball owners don’t take money out of their team. They raise all the revenue they can from tickets and media rights, and they take out their expenses, and they give all the money left to their GM to spend.

“The league itself does not make a lot of cash. I think there is a perception that we hoard cash and we take money out and it’s all sitting in a pile we’ve collected over the years. Well, it isn’t. Because no one anticipated a pandemic. No one expects to have to draw down on the reserves from the past. Every team has to figure out a way to plug the hole.”

ESPN.com

I understand that assets can be ill-liquid, and in this environment, a baseball team might have a tough time getting a loan. There is a real possibility that baseball does not recover from this mostly missed season. What if their is a second wave of the virus, or even a third wave next season? What if fans decide they don’t want to sit huddled close together in ballparks any more? If I were running a bank, I would rightly worry about the risk of lending money to teams.

It may come down to owners using their personal wealth to back the teams. I suspect we will find out who really has deep pockets.