Leon Powe is the "grit and balls" that KG refers to. And still the same inspiring, hard-working guy. He bounced from the Cavs to the Grizzlies and then even to Pueto Rico this year to prove to everyone that he has rehabilitated yet again.
And he competed in the Summer League in a Bulls uniform against guys 10 years younger in order to work his way back into the League.
Here's a great article at Celtic Nation: http://www.celtic-nation.com/blog/2012/07/21/leon-powes-odyssey
And great Leon quotes at Hoops Hype: http://hoopshype.com/rumors/tag/leon_powe
If anyone has seen the movie that HoopsHype mentions, please post your impressions. Sounds like a fascinating story. "The Town Game: Two Lives, Two Paths" about Leon Powe and Hook Mitchell