The receiver was seen testing his knee on the sidelines, trying to get back into the game. He later explained the decision to remain out.
"I was testing it out," Pearsall said postgame. "I fell pretty hard on that one play on the sideline, trying to keep my feet in bounds, and I fell pretty hard on my knee. And I was just feeling pain and a little bit of instability, so I wasn't trying to really mess with it.
"I was moving around. I was working with some of the trainers to try to make it feel better to go back out there. That wasn't the case for me. I went out for one more play and felt a little bit of pain and a little bit of instability, so I just kinda shut it down from there."
Pearsall entered Week 4 already managing a knee issue and was listed as questionable before the matchup. Head coach Kyle Shanahan clarified after the game that Sunday's injury was to Pearsall's other knee.
When asked about the severity of the setback, Shanahan said, "We're not sure yet."
Other 49ers injuries vs. Jaguars
Shanahan also provided updates on additional injuries from the game. Tight end Jake Tonges suffered a stinger in his shoulder but ended up returning to the action.
Wide receiver Jauan Jennings was shaken up after a two-point conversion in the third quarter and diagnosed with a rib injury. He managed to return to the game.
Jennings was questionable entering Week 4 as he was already dealing with shoulder and ankle injuries. When asked if he had concerns about being ready for Thursday night's matchup against the Los Angeles Rams, he responded, "Nah."
More San Francisco 49ers News
-
49ers coach Kyle Shanahan shares injury updates ahead of Dolphins game
San Francisco 49ers head coach Kyle Shanahan spoke with reporters ahead of Wednesday's practice as the team prepares for its Week 2 matchup against the Miami Dolphins. Here's everything Shanahan said ahead of the week's first practice. Transcript provided by the San Francisco... -
49ers vs. Dolphins injury updates: Latest news from Week 2
The San Francisco 49ers are facing the Miami Dolphins in a Week 2 matchup at Levi's Stadium in Santa Clara, California. Below are the latest in-game injury updates for the 49ers. This article will be updated in real time as new information becomes available. Players are... -
49ers provide post-game injury updates on Demarcus Robinson, Mike Evans, others
The San Francisco 49ers' injury situation worsened Sunday. Two wide receivers, Mike Evans and Demarcus Robinson, suffered setbacks during the team's Week 2 win over the Miami Dolphins. One appears to be minor, while the other could keep a key veteran receiver sidelined for some... -
49ers injury news: Demarcus Robinson, James Thompson Jr. suffer high-ankle sprains, other updates from Kyle Shanahan
San Francisco 49ers head coach Kyle Shanahan spoke with reporters on a conference call Monday, one day after the team's 35-13 win over the Miami Dolphins. He provided several injury updates following the game. Wide receiver Demarcus Robinson suffered an ankle injury during the...