NFL Rivals: http://tinyurl.com/3uf48xv
If you are familiar with the Backbreaker football series, this is another "smaller" game from the same company. Unlike the original Backbreaker mobile offering, this version has defensive drills as well as offensive drills (the original only had offense). In the end, it's still NOT a full football game but just a set of drills to run. It's entertaining for a day or two, but not much beyond that. If you already have purchased or played the original Backbreaker mobile game, you already know what to expect here so don't waste your money. If you don't have the original Backbreaker, I'd still suggest skipping it.