This afternoon in Chicago, White Sox pitcher Mark Buerhle faced 27 hitters and retired every one, notching baseball's 18th perfect game and the first since Randy Johnson's in 2004. The achievement puts him in some quality company, as he joins Hall of Famers Cy Young, Sandy Koufax and Jim Bunning in the super-exclusive club. While all perfect games are memorable, it's not yet clear if Buerhle's effort was quite as impressive as when the rotund David Wells tossed his gem in 1998 -- while still "half-drunk" from the previous night's "Saturday Night Live" cast party.