Complex sentence: The son of Bob Blewett who represented South Australia in the 1970s, Greg Blewett began his domestic career in 1991--92 playing for South Australia in the Sheffield Shield and One Day domestic tournament competition in Australia.
Split into simpler sentences: The son of Bob Blewett who represented South Australia in the 1970s,. He began his domestic career in 1991--92 playing for South Australia in the Sheffield Shield and One Day domestic tournament competition in Australia.