How will they stack Mayweather's undercard?

[US Dirk Killer]

So they have nothing...and Mares/Gonzo is pretty moot

[kombayn]

I still think Mayweather needs to pick Maidana, if he goes with Khan. SMH, that's not going to be a fun fight. I think a Lamont Peterson vs. Lucas Matthysse II fight could happen as the undercard, since the money wouldn't be much to get them on the card and you know Mayweather will fill out the card with two of his guys fighting a couple Golden Boy fighters.

Mayweather vs. Maidana
Khan vs. Matthysse

That would get me to buy the PPV.