How to find and massage Perfect Spot #9, a common trigger point in the pectoralis major muscle of the chest.
Treating muscle pain in the chest yourself
Massage for Chest Pain (Pectoralis Major)
Potential points of tenderness on the anterior chest wall. Point 8
Pectoralis major - Physiopedia
Pectoralis major muscle pain & trigger points
Tight Chest Muscles: Why Your Upper Back Is the Key to Their Release — Laguna Orthopedic Rehabilitation
Treating muscle pain in the chest yourself
Tight Pec Minor - The Doctors Of Physical Therapy
Effective Recovery for Pectoralis Minor Injuries
Chest Pain Muscle Relief Nerve Mobilization Massage (Tutorial)
Pectoral Strain
11 lessons from my first pec tear - Dan Ogborn