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 best competition might be at safety, where Jason Pinnock, Ji'Ayir Bown, Richie Grant and Marques Sigle are vying for two starting spots.

The 49ers may need some young offensive weapons to emerge. Kyle Shanahan commented on Isaiah Neyor and Jordan Watkins' early training camp work.

The 49ers are limiting Christian McCaffrey's training camp reps to keep the running back healthy for the season opener and beyond.

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

The San Francisco 49ers would love to see one of their fourth-round picks standing out on the defensive line this season.

Rochelle Searight, whose husband is Brandon Aiyuk of the San Francisco 49ers, explained why many wives and girlfriends of NFL players are "freaking out" online

The San Francisco 49ers resolved one of their wide receiver-related concerns by activating second-year player Ricky Pearsall from the physically unable to perform (PUP) list Sunday. Pearsall had been dealing with a hamstring strain from the team's OTAs and minicamp phase of the offseason.

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.