At Chargers training camp in El Segundo, the unexpected retirement of wide receiver Mike Williams, who was 6-foot-4 and 220 pounds, has created a significant void in the roster, particularly affecting the starting “X” receiver position and chemistry with quarterback Justin Herbert. As the team evaluates internal options like Quentin Johnston and rookies Tre Harris and KeAndre Lambert-Smith, they also consider potential free-agent signings to address this gap.