I want to discuss the topic I had said I would discuss in this blog post. I had previously explained how the cover 2 works in its basic forms. I now want to discuss how the cover 3 generally works. Cover three means there are three defensive backs covering the deep part of the field. They can either divide the field up into three or they can divide it by ¼ ¼ and 1/2. Cover 3 means the middle of the field will be closed. By just looking at the middle of the field, a quarterback can identify whether it’s cover 2 or cover 3 or 1. Cover 1 also has the middle of the field closed. When playing cover 3, there will almost always be at least one safety covering a deep part of the field. There still need to be people covering the flats so that responsibility is left to a linebacker and a cornerback. Which corner back it is depends on cloud or sky coverage. If the call is sky the strong safety has the flat and the corner is deep. If the call is cloud the strong side corner has the flat and the strong safety is deep. I hope this helps people wishing to understand football a little better.