Many of Diaz's performances have been less than spectacular, sometimes barely winning, but he is a solid lightweight and strong. He fought most of his career at Lt. Welterweight and even though hes not a huge puncher, hes a good one. I cant see Pac backing him up or badly hurting him. I think Pac doesnt have the advantages he is used to because he probably wont be the stronger guy and Diaz is also a southpaw so no advantage there for either. Stylistically could be interesting and look out for headbutts in this one as Diaz often leans foward and neither guy has fought another southpaw lately. Could be an ugly fight, but I think Diaz may outhustle him.