What player in the NFL, past or present, would you have wanted to see succeed so badly but due to injuries, off the field issues, or whatever happened just derailed their career? For me it was unfortunate to see players like Josh Gordon or Justin Blackmon have their careers end or never getting back on track because of off-field issues.
Dominick Davis RB Texans- was a monster recording 1300+ yards each season for his first 3 years in the league- and then poof his career ended.