Rivera's wild one

We all know that even Mariano Rivera has bad days sometimes.  Still, it was remarkable to see him throw a wild pitch on a 3-0 count.  It was just Mariano's third wild pitch since 2008 (A.J. Burnett already has six in four starts this year).  It crossed the plate at 0.26 feet above the ground, which is the lowest cutter Mariano's thrown according to the PITCHf/x data I have (regular season games going back to 2008).  The only pitch he's thrown lower was a sinker that he bounced for a wild pitch in an August 15, 2008 game at home against the Royals.  That pitch's vertical plate location was -0.14, which means that it bounced before reaching the plate.  Coincidentally, that wild pitch also scored a run from third base.