Both Los Angeles Chargers running back Najee Harris and Arizona Cardinals halfback James Conner appeared to suffer major injuries on Sunday, calling into question their availability for the foreseeable future.

Najee Harris sustained a non-contact Achilles tendon injury during a 23-20 win over the Denver Broncos that likely will keep the running back out for the rest of the season.

Former Pittsburgh Steelers running back Najee Harris likely had his season end after suffering an Achilles injury in Week 3. The now Los Angeles C

Other veterans who got the start in Week 3 in place of injured quarterbacks include Carson Wentz, starting for Vikings QB J.J. McCarthy, out with an ankle injury, Tyrod Taylor in place of Justin Fields (concussion) and Marcus Mariota, who started in place of Jayden Daniels (knee).

Najee Harris and Kareem Hunt are sworn enemies on the gridiron as members of the Los Angeles Chargers and Kansas City Chiefs.

After two lackluster weeks from the Los Angeles Chargers' backfield, one NFL writer calls the Bolts' running backs a problem.