Week 8 at Tennessee
What looked to be a juicy matchup against Oakland last week turned into a season-low two-catch, 9-yard effort for Robinson. That's just plain ugly, but he did get eight targets in the game so the poor game wasn't for lack of trying.
Tennessee has allowed at least 14 WR receptions in five of its seven games and at least 168 yards to the position in five of seven games as well. You've got to roll with Robinson because of his upside potential, but he's clearly not a WR1 start any longer.