What happened: The Los Angeles Chargers placed tight end David Njoku on injured reserve and signed veteran wide receiver Marquez Valdes-Scantling to the active roster. The team also added long snapper Spencer Triplett to the practice squad.

Why it matters: Valdes-Scantling joins the 53-man roster to provide immediate depth after initially signing with the practice squad on September 15. The transaction officially begins the mandatory four-game absence for the starting tight end.

What to watch: Los Angeles continues to adjust its passing targets ahead of Sunday's matchup.