Here's a timeline of how Diego Sanchez looks from 185 dropping down each weight class up until 145 lbs.
Diego Sanchez made his UFC debut back in 2005 where he beat Kenny Florian to become the inaugural Ultimate Fighter winner at middleweight. More than a decade later, he will join his former TUF opponent in being the only two UFC fighters to have competed in 4 different weight classes.
For several years, Sanchez has fought back and forth at 170 lbs and 155 lbs, with the general thinking that he's a 'tweener: undersized at welterweight but has too tough a cut to lightweight.