Seeing Silva/Weidman 2 main event and how it unfolded reminded me of this quote from Duke Roufus:
" Leg kicks are a cool thing until someone knows how to block it. When you know how to block it, he's the one that gets hurt, Aldo, not Anthony. "
This was referring of course to the Aldo/Pettis fight that didn't materialize. I guess more and more fighters will be aware of this technique. Not saying checking a kick is a new innovation but the technique/timing could be refined. I think KZ did it to Aldo on their fight and Aldo ended up breaking his foot. Something similar happened except it was foot that met knee/bone instead of shin.