Can Zach Zenner or Desmond Martin do enough in training camp to beat out George Winn for the Detroit Lions' final spot at running back?
Although much of the focus at running back will be on the potential competition for the starting job between Joique Bell and Ameer Abdullah, that isn't the only battle set to take place at the position for the Detroit Lions. Once you move down the depth chart and get past Bell, Abdullah and Theo Riddick, there is one additional spot expected to be up for grabs at running back.