This Metallica Black album is autographed and inscribed Enter Sandman by the greatest relief pitcher in MLB History.  Enter Sandman was selected for Mariano after the Yankees played San Diego in the 1998 World Series and became enamored with the entrance of Padres closer Trevor Hoffman to ACDCs Hell's Bells. In 1999 Enter Sandman became the song that Rivera would stroll out to the mound with until it was played for the last time in September of 2013. It was the perfect song to be blared on the PA as Mariano made his slow walk out to the mound from the bullpen, and if you faced his late inning cutter you'd be put right to bed.