Before we go any further, I should note that I'm skeptical that this card is going to happen at all. I was unable to get in touch with the promoters and the bout is not listed at the DCU Center web site. But the Boston Herald has published multiple reports saying the fight card is going forward, so it's at least worth exploring what kind of card this would be.
Petruzelli vs. Alexander would certainly draw some interest, as the two of them have both fought Kimbo Slice, which means they have been involved in two of the most-watched fights in American MMA history. Petruzelli destroyed Kimbo with a 14-second knockout, while Alexander lost to Kimbo in a dull decision. Both guys are UFC washouts who don't have much going for them in their MMA careers right now, but I'd think Petruzelli would have to be considered the favorite if he fights Alexander.
Sylvia vs. Pudzianowski would draw a lot of attention, both in the United States and in Poland, where Pudzianowski is quite famous. But Pudzianowski is scheduled to fight in Poland on May 7, which serves as further evidence that this card isn't going to happen.
The promoters say they're going to put the card on pay-per-view, and I can't imagine that it would do much of a buyrate. In fact, I'm not even sure if the cable and satellite companies would carry it -- if it happens at all. But if they do, I'll be watching. It would be hard to look away.