Blocks in the back?

[Uncle Ernie]

Well, the second block is definately legal IMHO..

The first one is very close. I voted for it being illegal after only watching it one time. However, the more that I look at it, it may be legal.

One thing that I noticed is the blocker is already committed to making the block when the blockee changes his angle at the last minute. I don't know for sure, but if I don't know, I ain't throwing.

Also, for what it is worth, the blockee in the first block is not going to make a tackle (oh, don't blast me too much) but I don't think there is a clear advantage gained here.