No, but I would like to see more about his fight with Juan Escobar, where he was floored and supposedly almost knocked out.
I think it's gone down as one of those "retrospective robberies" where a fighter becomes brilliant and then people decide he must have been jobbed early on in his career. The reality is that Sanchez, like Monzon, became a much better fighter when he fought and became champion. The most debatable decision i've read involving Sanchez was actually an early win vs a bloke called Fidel Trejo.