De'Zhaun Stribling's Rookie Year in Jeopardy, Stock Up/Down for Second-Year Defenders

San Francisco 49ers rookie wide receiver De'Zhaun Stribling is out at least 4 weeks after spraining a ligament in his ankle during his first NFL game. What's next for Stribling, and reviewing key second-year players on the 49ers defense from from Week 1 vs the Los Angeles Rams.