I get the frustration. But WR's run for a living, a sprained ankle isnt something I would consider "injury prone".
Date
Nov 27, 2016 NFL Back Lower Lumbar Sprain/Pull Unspecified Grade 1 Parker hurt his back during Week 12 action and it kept him out of the next contest.
Aug 30, 2016 NFL Thigh Hamstring Sprain/Pull Unspecified Grade 1 Parker missed one preseason game after being diagnosed with a strained hamstring.
Aug 1, 2016 NFL Thigh Hamstring Sprain/Pull Unspecified Grade 1 Parker has been hobbled for a week with a hamstring injury during preason practice. He missed 1 preseason game.
Oct 29, 2015 NFL Pedal Foot Parker had an issue with scar tissue in his left foot but it was not a fracture. He missed the following two weeks as a result.
Jun 5, 2015 NFL Pedal Foot Fracture Parker reinjured his fractured foot in OTAs and had to have surgery. He was expected to be back by the beginning of the season and missed 3 preseason games.
Aug 22, 2014 Non-NFL Pedal Foot Fracture Parker fractured the 5th metatarsal in his left foot during practice and missed the first 7 games of the season.
Oct 7, 2013 Non-NFL Shoulder A/C Joint Sprain Parker injured his shoulder in the game against Temple and missed the following week's tilt against Rutgers.
So you would not call him injury prone.:arghh All of this and his play has been sporadic at best.