Amir Khan vs Lamont Peterson II - Saturday May 19 2012 @ Mandalay Bay Resort & Casino, LV, Nevada, USA . The May 19 rematch in Nevada between Lamont Peterson and Amir Khan had its officials named this morning by the commission, and this is particularly important given the controversy of a largely inexperienced crew in December that led to Khan being deducted points for shoving, plus scoring that -- well, the scoring wasn't really a problem, given that it was a really close fight, so mostly this is about the referee.