It seems like only a week ago that Tracy Porter was jumping Reggie Wayne's slant route and racing the New Orleans Saints to their first Super Bowl title.
Though the offseason has gone by quickly, there have been a number of intriguing developments, from potential holdout situations, to injuries and run-ins with the law.
In a league like the NFL, where players' careers are so short, each training camp serves as a new proving ground for rookies and veterans alike.
For rookies, the chance to show that their skills will suffice at the highest level of play is the first (and most important) step in establishing an NFL career.
For veterans, each training camp is a necessary evil to show their team's coaching staff that the younger players will have to wait at least another year before overtaking them.
So, without further adieu, the 50 players with the most to prove entering 2010 training camps.