http://boxrec.com/list_bouts.php?human_ ... &cat=boxer
He was listed at 5'10.5" by Showtime tonight. They actually measure the fighters, so I think this is accurate. He has always looked a bit shorter than 5'11.
Also, I notice Michael Sprott's (http://boxrec.com/list_bouts.php?human_ ... &cat=boxer) height suddenly got upgraded from 6'0.5" to 6'1.5". Sky Sports, which measure fighters down to the quarter inch, had him at 6'0.75" in the Prize Fighter tournament. I understand we only do half inches on boxrec, so 6'0.5" or 6'1" is more accurate for Sprott.