Complex sentence: Alvin started his National Soccer League (NSL) career in Wollongong Wolves as a 21 year old in 1995 and played 156 matches for the former NSL club, punctuated by a short stint in Greece with AEK Athens FC.
Split into simpler sentences: Alvin started his National Soccer League (NSL) career at Wollongong Wolves in 1995 as a 21 year old. He played 156 matches in the National Soccer League, punctuated by a short stint in Greece with AEK Athens FC.