J.J. Watt says he's not sure whether the 2020 NFL season will take place as originally planned -- but he's training his ass off anyway because it's better to "stay ready."
"I don't know what's going to happen," Watt tells TMZ Sports ... "I'm just like everybody else. We're all kind of just waiting and seeing."
"The uncertainty is the worst part of it all. We don't know what's going to happen. But, I'm training like it's gonna happen on time. And, I'm looking forward to playing -- fans, no fans -- whatever it is.