Blocking from behind

[BoBo]

This is one of those old sayings that his head was in front so no way it could be a block in the back.

It is where the initial contact between blocker and defender occurs. It is possible to block someday in the back even though the head is in front.

This is where the old saying goes "make sure you see the entire play before you flag it"

In addition different angles will give others different viewpoints than yours.

Don't look for a foul, see the foul.