this is actually a huge leap in competition for Khan. I disagree that he would be ready for a title shot this year and think he should continue moving up in baby steps. However, Soto is not a very big SFW and Khan could probably handle him at LW.
soto got raped by joan guzman in his last fight. Amir would beat him by UD over 10 round fite. n soto aint a heavy pucher and he's only been knocked out once,