Tarron Jackson, a defensive end seeking a roster spot with the 49ers, was placed on a backboard and hospitalized after a hard collision during Sunday's practice.

San Francisco 49ers quarterback Brock Purdy was back with the team on Sunday after missing a day of training camp.

He had signed with the 49ers’ practice squad in January before being signed to a futures contract following the 2024 season.

Brock Purdy was excused Friday from the 49ers’ third practice of training camp because of personal reasons that are not expected to prompt a multi-day absence. Mac Jones and Tanner Mordecai served as the only quarterbacks for the 90-minute practice that preceded Saturday’s day off.

SANTA CLARA -- The 49ers just finished Day 1 of training camp. One wide receiver decided not to hold out, another wide receiver pulled his hamstring, the franchise quarterback threw two interceptions, and the rookie first-round pick made a strong first impression.

The 49ers got one of their top offensive weapons back into the fold during training camp and the importance of that isn't lost on the organization.

One of the standouts of the opening day of camp: receiver Jauan Jennings, who isn't waging the sort of "hold in" Brandon Aiyuk did last year