Rookie wide receiver Jacob Cowing made a significant impact in his NFL preseason debut for the San Francisco 49ers, leading the team with four catches for 51 yards and showcasing versatility with a 19-yard rushing play. His notable performance included a 38-yard catch, which impressed teammates and highlighted his speed. Cowing's ability to contribute as a potential punt returner was also noted, as he demonstrated poise and decision-making during returns. Head coach Kyle Shanahan acknowledged Cowing's promising future, particularly given his strong grasp of the playbook despite a recent hamstring injury. While the 49ers have established starters, Cowing's performance could solidify his role on the team as the season approaches. Overall, Cowing's debut has sparked optimism about his potential contributions moving forward.