The impact of Freeney's loss can't be overstated. The potential Hall of Famer was off to his best start in years. He toyed with Houston Texans All-Pro left tackle Duane Brown in the season opener and was second only to Chiefs outside linebacker Justin Houston in Pro Football Focus' pass-rushing metrics through four games.
Already playing without 2012 first-round draft pick Melvin Ingram, the Chargers don't have another proven edge rusher on their roster.
As if Freeney's injury isn't devastating enough, the Bolts will also have to do without Malcom Floyd.
A source who has spoken to Floyd tells Rapoport that the wide receiver will also be sent to injured reserve with a neck injury that led to Floyd being carted off the field two weeks ago.