The most logical choice would be that Roy must be broke, but that seems unlikely so I don't know.

He did/does have a huge ego as others said so I'm sure that plays a big role in him wanting to fight, sure seemed that way when Lampley talked to him on HBO about the Lebedev fight and Roy went off about feeling like Michael Jackson in Russia and all this stuff.

I do think there is something fishy about Roy going over to Poland to fight that Kostecki character, then Kostecki being arrested and exposed as the leader of an organized crime syndicate...