In a heartfelt statement that has sent ripples through the horse racing world, Aidan O’Brien, one of the most celebrated trainers in the sport, has expressed his regret over the departure of Diego Velazquez, a standout horse from his Ballydoyle stables. The announcement of the horse’s transfer to the National Stud, following its purchase by Sam Sangster, marks the end of an era for O’Brien’s yard, where Diego Velazquez had been a shining star. The news, first shared via a post on X by At The Races on August 13, 2025, has sparked widespread discussion among racing enthusiasts, with many echoing O’Brien’s sentiment: “We’re sorry to see him go.”

Diego Velazquez, a four-year-old colt, has been a remarkable presence in O’Brien’s illustrious career. Known for his versatility and competitive spirit, the horse carved out a reputation as a consistent performer on the track. Under O’Brien’s meticulous training, Diego Velazquez secured notable victories, including high-profile Group races that showcased his stamina and speed. His ability to compete across various distances made him a fan favorite and a valuable asset to the Ballydoyle operation. O’Brien, renowned for his emotional connection to his horses, described Diego Velazquez as “really good,” a simple yet profound testament to the colt’s quality and character.

The decision to transfer Diego Velazquez to the National Stud for his retirement at the end of the racing season was not taken lightly. O’Brien, who has trained champions like Galileo and High Chaparral, is no stranger to high-stakes decisions in the racing world. Yet, his candid admission of sorrow underscores the deep bond between trainer and horse. “We’re sorry to see him go,” O’Brien said, reflecting on the colt’s contributions to the yard. The move to the National Stud, where Diego Velazquez will begin his stud career, signals a new chapter for the horse, but it also leaves a void in Ballydoyle, where his presence was a source of pride.

Sam Sangster’s acquisition of Diego Velazquez is a strategic move, as the colt’s pedigree and racing record make him a promising stallion. Sired by a top-class stallion and boasting a lineage that includes some of the finest thoroughbreds, Diego Velazquez is expected to thrive in his new role. The National Stud, a prestigious breeding operation, provides an ideal environment for the colt to continue his legacy off the track. For Sangster, this purchase represents an investment in the future of racing, with Diego Velazquez poised to produce the next generation of champions.

For O’Brien, the transfer is bittersweet. His Ballydoyle stables have long been a powerhouse in global racing, producing countless Group 1 winners and earning him accolades as one of the greatest trainers of all time. However, the departure of a horse like Diego Velazquez highlights the transient nature of the sport. Horses come and go, their careers often fleeting, yet their impact lingers. O’Brien’s emotional response resonates with fans who understand the dedication and passion that define his approach to training. His words capture not only the loss of a talented horse but also the end of a partnership built on trust and mutual respect.

The racing community has reacted with a mix of sadness and excitement. Fans have taken to social media to express their admiration for Diego Velazquez and their anticipation for his future as a sire. The transfer has also sparked discussions about O’Brien’s ability to continually replenish his yard with top talent. Despite the loss, Ballydoyle remains a hub of excellence, with young horses ready to step into the spotlight. O’Brien’s knack for identifying and developing potential champions ensures that his stable will continue to dominate the sport.

As Diego Velazquez prepares to leave the racetrack for the breeding shed, his legacy at Ballydoyle will not be forgotten. O’Brien’s poignant farewell encapsulates the essence of horse racing—a sport where triumphs are celebrated, and farewells are felt deeply. While the trainer and his team are sorry to see Diego Velazquez go, they take solace in knowing that his influence will endure through his offspring. For now, the racing world watches with bated breath as this “really good” horse embarks on his next journey, leaving behind a legacy that will echo in the annals of the sport.