After the 49ers beat the Giants 34-24 on Sunday, their head coach Kyle Shanahan said that the turf toe injury that quarterback Brock Purdy is dealing with is unlikely to entirely go away before the end of the season and that the measured approach to his return to practice work is meant to minimize its impact on his play.
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https://www.nbcsports.com/nfl/profootballtalk/rumor-mill/news/kyle-shanahan-mac-jones-play-has-no-impact-on-brock-purdys-return