Good catch.
chatgpt said it could be blood or mud. However, it is not a muddy wrestling show, People wore clean cloths. It cannot be sweating either. The middle of the blobs is wet. At the sides the blood penetrated into the cloth.
Dr Sweetland:
Corey had a gunshot wound just above his ear.
GRAPHIC CONTENT
I think it could not be the exit wound, must be the entrance.
But it raises another question.

