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.

SANTA CLARA — Three practices at 49ers training camp have offered a mere appetizer of what’s to come, from the stars to the scrubs. Here is a premature evaluation of an under-the-radar player (or not an entrenched starter) at each position that’s sparking intrigue:

San Francisco 49ers undrafted rookie WR Isaiah Neyor is already raising eyebrows in his first NFL training camp.

Brock Purdy and George Kittle lead the charge to the playoffs with Christian McCaffrey, Ricky Pearsall, and Brandon Aiyuk aiming towards good health.

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