"Yeah, it was bothering him," the coach responded.
It turns out the injury started before the start of the regular season. Armstead told NBC Sports Bay Area that he is dealing with plantar fasciitis in his right foot. It began before Week 1's contest against the Chicago Bears and got worse against Seattle.
Armstead did not practice in the week leading to tonight's game against the Denver Broncos and was listed as "questionable" on Friday's game status report.
Armstead tested his foot on the Empower Field at Mile High field before kickoff to see if he could play. The defender couldn't and was among the 49ers' six inactive players for the Week 3 contest. Sitting out the matchup snapped a 73-game streak for Armstead, including the playoffs, which started with the 2018 season opener.
The 1-2 49ers are traveling back to the Santa Clara area tonight and will begin preparing for next Monday night's matchup against the Los Angeles Rams.
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