Complex sentence: His early rise in chess was swift as he won Iran men championship title by age 14.He was a talented football-player as he became the captain of Tehran juniors football team by age 10.But his great interest in chess caused him to pick chess over football.
Split into simpler sentences: His early rise in chess was swift as he won Iran men championship title by age 14. While also a talented football-player and the captain of Tehran juniors football team at the age of 10, his great interest in chess caused him to pick chess over football.