The Chargers placed Guyton (knee) on the reserve/PUP list Tuesday.
Guyton won't be eligible to return until after the first four games of the regular season have concluded, though his shift to the reserve/PUP list was expected. The Chargers have little incentive to rush Guyton's recovery along, as the team can rely on all of Keenan Allen, Mike Williams, Joshua Palmer and first-round pick Quentin Johnston to headline Justin Herbert's WR corps.