Genesis 3:15

When I went to church a couple weeks ago, the pastor referenced Genesis 3:15 in his sermon.  I noticed that the second half of the verse has a chiastic structure:  "He shall bruise your head, and you shall bruise his heel."  The study notes in my Bible explain that "This points to Christ and His defeat of Satan on the cross."  It may be coincidental, but even the structure here (the cross form of the chiasm) seems to point to Christ's crucifixion.  I lookt up this verse in the STEP Bible, and while the possessive adjectives for "head" and "heel" are implied, this structure is present in the Hebrew too.