UFC lightweight champion Benson Henderson (18-2 MMA, 7-0 UFC) insists his rematch with Anthony Pettis (16-2 MMA, 3-1 UFC) will not be an emotional affair. That said, he remembers their historic first encounter, and Henderson insists he’ll “dominate” Pettis this time around. “It’s not really too much of an emotional fight,” Henderson told MMAjunkie.com (www.mmajunkie.com). “I think in life, sometimes, whether you win or lose – good or bad – you have to move on with your life. “‘Hey, I won