Final answer:
The soccer player's shoulder joint examination after an injury is called radiography, which is an X-ray technique for visualizing bones.
Step-by-step explanation:
The procedure used to examine the soccer player's shoulder joint after sustaining injuries in the championship match is termed radiography. An X-ray of the shoulder joint is a common radiographic technique used to visualize bones and assess for any fractures or injuries.
Rheumatologists and other medical practitioners often use this method to diagnose conditions because it provides clear images of the bone structures within the joint. While other imaging techniques like MRI (Magnetic Resonance Imaging), ultrasound, and arthroscopy are also valuable in various situations, an X-ray specifically refers to the radiographic imaging technique used in this scenario.