Jockey Manny Esquivel broke his collarbone on the left side during a Thursday training accident at Parx Racing and is likely to be sidelined six to eight weeks, according to his agent, Al Dellape.

Esquivel, fifth in the Parx rider standings in 2018, had just finished breezing a horse for trainer Danny Velazquez when "the ground appeared to break out from the horse, who fell," according to Dellape, who said the horse was not injured.

Esquivel was taken to the hospital and released. He is scheduled to see an orthopedic doctor Friday.