Nysos, who would have been favored in the $1-million Pacific Classic later this month at Del Mar and was a top early contender for the $5-million Breeders’ Cup Classic this fall, won’t race again, Coolmore America announced Monday.

The 5-year-old son of Nyquist is headed to stallion duty next year at Coolmore’s Ashford Stud in Versailles, Ky.,

Nysos retires after eight wins and two seconds in 10 lifetime races, with earnings of nearly $5.3 million. He was considered a top prospect for the 2024 Kentucky Derby but was injured that winter and didn’t race again for 15 months. Saudi Cup before defeating Journalism in the Met Mile in June at Saratoga, which turned out to be his last race.