All the Klitschko fights are with them as the headlione act, so maybe he means a serious American contender, that would possibly be Holyfield against Valuev.
American PPV I mean. None of the Klitschko fights (that I can remember) were PPV here. I should also specify that I mean HBOPPV or ShowtimePPV possibly.
Haye-Valuev was a PPV in the US. And if you're counting internet PPVs, Adamek-Estrada was also a $15 internet PPV in the US.
I think Vitali vs Peter was on Showtime PPV but I could be wrong. I remember I had to buy the fight to see it.