Marcus Mariota injury update as Commanders QB exits preseason game vs. Dolphins

Mariota is Washington's backup quarterback behind Jayden Daniels and carries essentially zero standalone fantasy value in all standard and most dynasty formats. A preseason injury to him has no direct impact on redraft or season-long lineups. The only relevance is depth-chart/backup-handcuff speculation for Daniels owners in deep dynasty leagues—if Mariota's injury is significant, Washington could look at other camp arms (e.g., a younger developmental QB) as the emergency option, but this doesn't change anything for Daniels' outlook since he's healthy and entrenched as the starter.