i respect ken alot, hes my favorite fighter of all time. i do believe he needs to retire. he should have after his fight with tito at ufc 40. i also think the younger shamrock from the early days would probably destroy tito if tito fought ken in his prime. ken was alot quicker and a whole lot stronger back then. He has done alot of the sport thats why most of the pple in the ufc are there bc of him and gracie ect.