Complex sentence: His parents came to the United States 5 years after Danys arrived due to a rule had been set by Cuba for players who defected from Cuba that the parents of players who defected from Cuba had to wait 5 years before coming to the United States.
Split into simpler sentences: His parents came to the United States 5 years after Danys got here. A rule was set by Cuba for players who defected from Cuba that their parents had to wait 5 years before coming to the United States.