In the NFL, the summer is the time for self-improvement.
For young players, summers can put them on track for success or derail their careers. OTA and minicamp practices will help them develop their skills and put them head-to-head with the teammates who they'll be competing against for playing time.
Every NFL roster has at least one key young player who could drastically improve his career by improving in a particular area this offseason, be it durability concerns or refinement of technique.
The following players, who are either rookies or rookie-contract players, will at a minimum be competing for a Week 1 starting role in 2018.