BoxRec

I don't see Sanchez beating Arguello at Lightweight because of the weight and size.
But at Jr Lightweight I think Arguello was his best.
Sanchez was a great game fighter but the only edge I give him here is speed and movement.Arguello is known for great stamina like Sanchez.I see Arguello beating him and maybe roughly over the Championship rounds.

Sanchez by UD.

The sad fact is we will never know what Salvador could have done beyond 126 because of the tragedy. However, I don't think he carries a lot of the advantages he had at that weight against many of the good fighters at 130 and 135.Alexis by strong unanimous decision or possible late round stoppage.

Sánchez, UD at 126. Arguello UD at 130