Cover 0
Overhangs
If you are not blitzing you will most likely be Man to Man with the #2 receiver on your side.
Backers The rule is you have the # receiver that you are the defender in coverage. You will either have #2 or #3. #3 can sometimes be the RB or a TE. #2 can also be a TE.
Corners If you are in coverage you will be Man to Man with the #1 receiver to your side.
Safety You are either Man to Man with #2 or #3 depending on the blitz.
Backers The rule is you have the # receiver that you are the defender in coverage. You will either have #2 or #3. #3 can sometimes be the RB or a TE. #2 can also be a TE.
Corners If you are in coverage you will be Man to Man with the #1 receiver to your side.
Safety You are either Man to Man with #2 or #3 depending on the blitz.