Complex sentence: However, in 1969, Green won the Southern Amateur for a second time, and as one of the top 10 amateurs in the country, he decided to turn pro. He took a year to earn his PGA credentials.
Split into simpler sentences: However, in 1969, Green won the Southern Amateur for a second time. As one of the top 10 amateurs in the country, Green decided to turn pro and took a year to earn his PGA credentials.