I have that game on tivo, and have watched the play in slow motion several times since I saw the picture above.
That picture is a great example of how misleading a picture can be. Just looking at the still above, it appears that the runner came into Castro with his spikes high enough to do substantial damage. But looking at the entire play, the runner (who was clearly out of the baseline, but that is a different issue) came at Castro with his leg out in an attempt to trip him, with his toe extended outwards. The top of his tow slipped under Castro's legs as he jumped, and after passing Castro, he turned his foot around so the spikes were extending outwards.
The above picture is taken AFTER his foot had passed under Castro's legs, and could not have possibly have spiked him. It was NOT a deliberate (or even accidental) attempt to spike the shortstop. His cleats were NOT up as he made contact with Castro (and he DID make contact with Castro).