Jonjo O'Neill and Frankie Dettori led the tributes following the death of legendary Irish trainer Paddy Mullins.
Mullins passed away peacefully, aged 91, at 7am on Thursday morning, and is best remembered for training Dawn Run to win the Champion Hurdle (1984) and the Gold Cup (1986) at the Cheltenham Festival, a feat which has yet to be matched.
"It's a sad day," said O'Neill, who rode the brilliant mare in both races. "He was a very nice man, but a very quiet man. He didn't say a lot but when he spoke you listened and took notice. He was a unique man and he loved horses and knew everything about the game, inside out."
Of Dawn Run, O'Neill added: "He knew everything about her. He knew how she was thinking, knew how she was going to run, and knew exactly how to get the best out of her at the right time. I was proud to have been associated with him."
Mullins enjoyed a career spanning 52 years and enjoyed huge success on the Flat, tasting Classic glory with the Dettori-ridden Vintage Tipple in the 2003 Irish Oaks.
"I actually stumbled upon the ride as Johnny Murtagh couldn't ride her," recalled Dettori.
"Obviously I had heard of Paddy, but I had never met him until the day. He had a great aura about him and he didn't give me any instructions. He said I'd been riding horses all my life and left it to me. He got an amazing reception after the race as he was a legend and was loved by the Irish racing public.
"I was very blessed to be part of that day and to have met such a legend."
Sir Peter O'Sullevan called home Dawn Run on her two big victories at Cheltenham, and considered himself a friend of Mullins.
He said: "We were of the same generation, and our paths used to cross regularly. We had a strong affection for each other and I had a huge admiration of his talents. He had a great innings and certainly left his mark through his talent and through his personality."