Per Tim Twentymen the Detroit Lions have announced the beginning dates for their 2015 training camp.
Lions rookies will report for training camp in Allen Park on July 28. The vets have to report on Aug. 2.
— Tim Twentyman (@ttwentyman) July 7, 2015
Rookies typically report to camp earlier than veterans in order to get accustomed to camp life. Once the veterans show up its full tilt from there. Training camp is a fun part of the year because fans get to see the early stages of what their team can be.