The NFL preseason is a time when positions on the teams are won and lost. Even more importantly this is where players can move up the depth charts and claim a starting job for a team.
For rookies in the NFL it is harder than most to be named starters, since they have no NFL experience. But every year there are a few that are able to compete for these starting positions.
Here is a list of five position battles happening this preseason that include 2010 NFL rookies.