Rapoport explains that the procedure was described as a minor cleanup and Armstead should be fine for most, if not all, of the spring drills.
Armstead, 24, is a former first-round pick out of Oregon by the 49ers in the 2015 NFL Draft. He is entering the final year of his four-year, $9.84 rookie contract and is set to earn a base salary of $1,777,176 for the 2018 season.
Armstead was placed on the team’s season-ending injured reserve after Week 6 after sustaining a broken hand.
The 49ers elected to pick up Armstead’s fifth-year option a few weeks ago, which will cost them $9,046,000 for the 2019 season. It’s worth mentioning that the fifth-year option is only guaranteed for injury and won’t prevent the two parties from working on a long-term extension in the next year or so.
In 2017, Armstead appeared in six games for the 49ers and recorded 16 total tackles, 1.5 sacks, and one pass defense.