First of all it was insane to fight Ugas after Spence was injured. It was high-risk low reward and Ugas cant sell PPV so the card should have been canceled. Anyway, Pac wants a final farewell fight and Khan is perfect. First of all Pacquiao and Khan are big in Dubai. There is a large Filipino and Pakistani population there. It would sell out any arena in Dubai. Both guys are big names in boxing still so they can make some decent money in this. It is far more logical then Pacquiao vs anyone else. Also it is low risk. Even though Pac is older, Amir is older as well. Also Amir cant punch very hard and the Pac that fought Ugas would handle Khan easily. Khan would not do as well against Ugas. It can also give Pac a KO to end his career. This way he goes out with a 'bang'.
Pac took some real punishment this fight and if he does fight again he will be 43 - the best thing for him to do is never fight again. Now even against a much lower level fighter he could be in real jeopardy.
He needs to retire he is done, there are probably only one or two cash grabs he could do which are both medium risk/very high reward for him at this point. Tank or King Ry
Pac should fight a retirement fight in his home country (give back to his people), against someone like Josesito Lopez. Amir Khan deserves nothing: no attention, no consideration, no big pay day, nothing.............Actually I take that back, he should fight the similarly diminished Kell Brook in the UK and then go away.
While I can appreciate this will enable him to retire with a knockout win does it really prove anything or add anything to his legacy except for a little bit more money. It will also deprive the British fans who care the Brook vs Khan fight which is overdue. Khan will go for it just to spite Brook.
A farewell fight, a nice idea for Manny but against Khan... no. Simply because Khan is at the end of his career as well. He's not trying to leave the sport on a knockout loss, I can see him fighting a safety first fight and making it a 12 round affair. Which would probably satisfy Khan but not Manny. Manny should just hang'em up.
If Pac wants to fight a farewell fight it should be against Jeff Horn because he still has those problems.