Why don't they want to be sparring partners for anyone? Do they think they're too good for it? There is nothing a southpaw can do that an orthodox can't also do. The southpaw stance isn't some great mystery. It's just a mirror image of the orthodox, nothing more.
Strangely Iwasa has, earlier this year, sparred with Wake and Omori...not bad that considering ALL 3 are southpaws. Sort of helps that Iwasa and Wake are great friends. Every fighter needs a southpaw buddy!
Clinton van der Berg ‏@ClintonV Helluva fight. Makabu the aggressor through rd 8, but Mchunu counter-punching a treat. One of best rounds of the year. Damn ha.
Well I'm not saying none of them are haha, it's that good fighters usually don't want to be sparring partners for anyone else, they don't want anybody relevant to know how to fight them. That's it. If I was a quality world level southpaw, I sure as hell ain't being a sparring partner for anyone in my weight class that's relevant. :deal
He's just posting twitter feeds, no one is actually watching this live (Well unless someone's in SA, which I doubt)