The 49ers believe neither tackle Joe Staley nor wide receiver Dante Pettis sustained long-term knee injuries Sunday in the team’s 29-27 loss to the Los Angeles Chargers.
Related players: Marquise Goodwin
Pettis injured his left knee on a punt return in the first quarter. After the initial diagnosis, the injury isn't believed to involve damage to the anterior cruciate ligament. Pettis is expected to undergo MRI examinations Monday. Goodwin was also injured in the game, suffering a hamstring setback.
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