Boxing mogul Don King likes to watch guys dish it out, but he can't take a hit himself. Yesterday the spin doctor filed a $2.5 billion lawsuit against ESPN for airing a SportsCentury bio of him that he claims is defamatory. Among the statements made by the Emmy- and Peabody Award-winning program to which King objects: He allegedly underpaid star pugilists including Muhammad Ali, Larry Holmes and Meldrick Taylor, and has a really, really bad hairdo. (OK, that last one isn't alleged at all; that's just a fact.)