NFL teams won't be competing against each other for another three-and-a-half months, but players have already begun to battle their teammates.
Organized team activities have arrived for all 32 NFL franchises, which means position battles have begun anew.
In some cases, players don't even realize they're competing for certain roles. In other cases, the whole football world is well-aware that a particular spot is up for grabs.
Among the dozens of battles that will transpire throughout the NFL between now and the start of September, the following 14 are worth keeping an eye on from the get-go.