Chargers' Justin Herbert Aiming for Health and New Contract

Herbert's left shoulder is improving but not yet fully healed after offseason surgery.
Herbert hopes to begin light throwing soon and be ready for training camp.
The Chargers have opened contract extension talks with Herbert but no deal is in place yet.
Herbert is focused on rehabbing his shoulder, leaving contract negotiations to his agents.
The Chargers are expected to pick up Herbert's fifth-year option to keep him under contract through 2023.