Israel Adesanya made the mistake of forcing himself up a division thinking he could continue his momentum and win a second belt, he would have defended the title a few times as he had more challengers coming up and instead he wanted to move up and that was a bad career move as some fighters might not have the same confidence after loosing a fight and even though i know he had his looses in Kickboxing the opponent is Marvin Vettori who had a tough fight when they fought the first time and it is not going to be an easy fight either.
How is that a mistake? He cleaned up the whole division and now needs to beat the contenders again.
he had more challengers coming up
Like who? Vettori? He already beat him and now again in an even more decisive fashion. Who's next after Vettori? Whittaker? Costa? Brunson? It's just a rematch after rematch over opponents he dominated. Moving up to light heavyweight was a win-win situation and I believed he should keep pursuing it to immortalize his legacy. There's no one at middleweight besides MAYBE Alex Pereira. Who's still unranked because he just got to the UFC. It will take years before he gets a title shot.