WMB tried to bunt. Kuroda threw a fastball inside, it hit WMB's palm as he tried to pull the bat back, from his hand it was deflected to his Jewls and from there it went into the ump's knee. they both went down to the ground.
After that the umps refused to give WMB first base, on the basis that either it went off his bat or maybe he didn't try to pull it back (He really did). WMB showed them the bruise on his hand as proof but they still didn't give him first. V came out and argued the s*** out of the call until he got ejected.