The 24-year-old Cheltenham Festival-winning rider, from Co Cork, died in hospital on Sunday from injuries he suffered in a fall at Thurles Racecourse in Co Tipperary earlier in the month.
He was treated in the intensive care unit at Cork University Hospital, where he died in the early hours of Sunday surrounded by his parents Bernie and William, brother Alan, partner Charlotte and extended family.
“He would want us to mend over time, he would want us to support Alan in his life choices and find joy in his achievements.
O’Sullivan shot to prominence on the opening day of the 2023 Cheltenham Festival, headlined by his Supreme Novices’ Hurdle win on Marine Nationale, just months after turning professional.
“But he also understood people and that is why he made a lasting impression on everyone and won the hearts of the Irish people.