Complex sentence: Weston started his career at whilst still studying at Glengowrie High School, and quickly established himself as a key player, winning the club best and fairest in 1976 and taking the captaincy in 1979 at only 21 years of age.
Split into simpler sentences: Weston started his career at whilst still studying at Glengowrie High School. He quickly established himself as a key player, winning the club best and fairest in 1976 and taking the captaincy in 1979 at only 21 years of age.