Simplify the following text for a Grade 4 native English-speaking person.
Original: Reporters later shortened the name to `` Cy '' , which became the nickname Young used for the rest of his life , although the Ken Burns ' baseball series credited his nickname starting by his pro teammates as `` Cyrus '' , due to his rural upbringing and bearing .
Simplified: Reporters then shortened the name to `` Cy '' . `` Cy '' became the nickname he used the rest of his life .