Any odds for the six kings's slam?

I can't find them anywhere.
I want to bet on Rune.

Unibet, Betway, Marathon, Interwetten have odds.

I also saw odds pop up on a few smaller sites, but nothing consistent so far. For random tennis prop bets like this, I’ve had better luck checking platforms like Online Casino Malaysia https://www.score8win.com/ where they sometimes list non-mainstream event odds earlier than others. Might be worth keeping an eye there if you're hoping to catch early lines.