Former NRL player Chad Robinson has been remembered as a passionate competitor, a loyal friend and a devoted father at his funeral in Sydney's west.

Hundreds of mourners, including past and present Parramatta and Sydney Roosters players, gathered on Tuesday to farewell the 36-year-old.

Chad Robinson was farewelled at Parramatta Marist Brothers on Tuesday. Credit:Edwina Pickles

Monique Brennan described her brother as a kind, generous and loving man whose death had left an unspeakable hole in her heart.

She spoke of her pride in Robinson for opening up about his mental health struggles and encouraging others to seek help.