ɪn tˈuː θˈaʊzənd sˈɪks, wˌaɪl plˈeɪɪŋ wɪððə mˈaɪnɚ lˈiːɡ fɹˈɛsnoʊ ɡɹˈɪzliz, nˈuːnjɛz wʌz səspˈɛndᵻd fˈɪfti ɡˈeɪmz fɔːɹ tˈɛstɪŋ pˈɑːzᵻtˌɪv fɔːɹ jˈuːs əvə pɚfˈoːɹmənsɛnhˈænsɪŋ sˈʌbstəns.
In 2006, while playing with the minor league Fresno Grizzlies, Núñez was suspended 50 games for testing positive for use of a performance-enhancing substance.