When is a tune up acceptable for a champion?

they should be allowed to fight salka-esque opponents 1-2 months after a title defense while still getting a title defense done within another 1-2 months.

Only when your name is Floyd or Pacman and you're doing it on ppv repeatedly.

When your ggg

I think after a long layoff or injury. If Ward was to comeback tomorrow I wouldn't expect him to fight a top guy in his first fight back.

A tuneup for a champion ? Close to never. Maybe if he gets injured, and I cant even say if he has been inactive for long because then he would just be stripped and not be champion anymore.

Most divisions are pretty slim, I don't see why a champ can't fight a top ten guy.

I'm all for tune ups after a bad loss and/or a long layoff, but if you're a champ you should always be fighting a ranked opponent at the very least