Question: What athlete did a Serbian traditional healer who has specialized in the use of horse placenta treatment to heal athletes used the horse placenta treatment on, she also treated  an Argentine professional footballer who plays as a right back for West Ham United and the Argentina national team?
Sentence (from "Mariana Kovacevic"): Mariana Kovacevic is a Serbian traditional healer who has specialized in the use of horse placenta treatment to heal athletes.
Relevant evidence: Yes