Complex sentence: Demetrios "Jim" Lefkos is a retired Cypriot football (soccer) forward who played professionally in the North American Soccer League and American Soccer League where he led the league in scoring in 1969.
Split into simpler sentences: Demetrios "Jim" Lefkos is a retired Cypriot football (soccer) forward. He played professionally in the North American Soccer League and American Soccer League, where he led the league in scoring in 1969.