In 2010, Serbian physician Dr. Igor Cetojevic suspected Novak Djokovic had gluten sensitivity after an unconventional strength test, later supported by blood work, prompting a two‑week gluten‑free tri... In 2010, Serbian physician Dr. Igor Cetojevic suspected Novak Djokovic had gluten sensitivity after an unconventional strength test, later supported by blood work, prompting a two‑week gluten‑free trial. The assessment matters because it addressed mi... [522 chars]