Although more as a 2nd ruck but I think McKernan has these attributes. Watching him in a ruck drill last week at training, once the ball hit the deck he would move more like a midfielder then a lumbering ruck. His speed and agility reallt shone in these contests which is exciting.
Watch our NAB cup match against Port last year again, especially the last quarter I think it was when McKernan went into the ruck. He wasn't there for long, but his 2nd efforts after the ball had hit the ground were excellent(Craig actually commented about it after the game), Corey like infact Unlike Hudson though, who was also great with the second efforts, I think he tends to keep his feet a bit more and thus can use his strength to kick the ball clear, rather than dish of by handball like Hudson used to.
NikkiNoo..i know Sellar has a background in Volleyball...just concerned he is still not mobile enough for Defence, forget about volleyball...Time will tell i guess.
His agility is acceptable for a genuine FB/CHB, but you probably wouldn't have him playing on the smaller forwards. His straight line speed is actually extremely good, ran down Luke Power in the Brisbane game late last year. If he doesn't make it as a KPD it won't be because of his agility/speed.