If Jon Jones hopes to successfully defend his light-heavyweight title in UFC 172′s headliner with Glover Teixeira , his trainer said he needs to avoid one potentially critical mistake. Jones (19-1 MMA, 13-1 UFC) is currently a 7-1 favorite in the April 26 pay-per-view headliner, but famed trainer Greg Jackson said Teixeira (22-2 MMA, 5-0 UFC), thanks to his power, presents a potential problem for Jones. “He comes in and he kind of overwhelms people,” Jackson recently told MMAjunkie. “So making sure he kind of doesn’t outdo us in that department, I think, is very important. I think that Jon needs to get his respect to make sure Glover can’t walk right through him.” How do you do that