Complex sentence: He began his career with home town club Hibernian, who he joined in 1962 having previously been on the grounds taff at local rivals Heart of Midlothian while playing for Tynecastle Boys Club.
Split into simpler sentences: He began his senior career with home town club Hibernian who he joined in 1962. He had previously been on the ground staff at local rivals Heart of Midlothian while playing for Tynecastle Boys Club.