He looks like the 2nd tallest guy there. He is even about one head taller than Mao and in China that is saying a lot. LOL
Detroit Bad Boys
He looks pretty tall here too:
Standard head distance on a 5'7" male is about 11.5" from the shoulders to the top of the head.
So that is about 17%. So on a 6'9" male the proportional distance would be about 20% more or almost 14". It appears in the picture that Nash's head comes up to about AJ's mouth, which is less than half the distance between AJ's shoulder's and the top of his head. Nash is 6'3", therefore AJ must be at least 6'10" assuming each has the same soul height on their footwear.
YaoMania! ~ View topic - The Yao & Nash Charity Gala Standardized Body Proportions 