Lombard would have to cut like 20 MORE pounds than he already cuts, it's basically impossible for him to ever fight Broner.
He also would be extremely gassed by the 3rd round and would probably be so tired by the 10th, the fight would be stopped because he wouldn't be fighting back if he didn't already get KO'd.
Broner is 27-1 with 22 KOs, and didn't get KO'd be hard hitting Maidana, why would he get KO'd by Lombard? Edit: Not to mention he's only ever been dropped in one fight.
Lombard is barely above average in terms of boxing skills, it's obvious a tongue-in-cheeck comment by Lombard, because Broner is such an asshat.