Saku won the UFC Japan tourney. So he is a champ.
And I know everyone likes to ride Yoel's dick real hard, but his biggest wins are a split decision over Jacare, a KO over Weidman, a ko over Rockhold who had been KO'd by Bisping before and a ko over Lyoto who should have NEVER been in the cage 2 months after his terrible beating/KO from Luke.
His record is not impressive.
Everyone is just impressed with his physique, awkward style and KO power mostly....
Not to mention he is obviously on steroids...