The San Francisco 49ers breathed a sigh of relief after standout Jauan Jennings participated in training camp after announcing his desire for a new contract, eliminating any worry of another hold in/out from a wide receiver. Brandon Aiyuk, who rehabs a torn ACL from Week 7, and Ricky Pearsall, nursing a hamstring strain from minicamp, were both moved to the physically unable to perform (PUP) list to begin camp. Now, second-year receiver Jacob Cowing is sidelined with a hamstring injury of his own.