What happened: The Los Angeles Chargers signed wide receiver Liam Clifford to their training camp roster on Wednesday. In a corresponding move, the team waived wide receiver Luke Grimm with an injury designation.

Why it matters: The addition provides immediate receiving depth for Los Angeles. Clifford's arrival addresses a roster void after Grimm missed several recent practices.

What to watch: Clifford will work to secure a spot as the team navigates the remainder of the preseason.