Cronin’s manager Paul Hogan confirmed his death to News Corp, describing him as an outstanding young man, while current and former teammates have also posted tributes on social media.
Former Raider Jordan Rapana wrote: “Man I still don’t want to believe it! You got me through some of the toughest times of my life! I love you my brother, fly high you absolute legend, love you forever brother! Okioki teina… QUEENSLANDER!!!!”
Hogan told News Corp it was a “tragic loss of life”.
“This has left Wynnum club, their players and myself totally shocked,” he said.
“He was an outstanding young man and my thoughts are with his family.
“We are all shattered.”
Broncos chief executive chief executive Paul White said in a statement that the club was in mourning and Cronin’s death had left the entire rugby league community in shock.
“Mitch was a quality young man who left his mark in our game through his actions both on and off the field,” he said.