Complex sentence: Zabeel retired to stud the winner of seven races and over $1 million, and has sired numerous outstanding gallopers, including Vengeance of Rain who won the Dubai Sheema Classic in 2007 and is the all-time Hong Kong earnings champion.
Split into simpler sentences: Zabeel retired to stud the winner of seven races and over $1 million. He has sired numerous outstanding gallopers, including Vengeance of Rain who won the Dubai Sheema Classic in 2007 and is the all-time Hong Kong earnings champion.