Conversation so far:
What was Cibona?
Petrovic followed his brother's footsteps and moved to Cibona to form, at that time, the best backcourt duo in Europe.
What position did Petrovic play?
the best backcourt duo in Europe.
Did the team do well?
The very first year in Cibona he won both the Yugoslav League championship and the Yugoslav National Cup.

Question: How many points per game did he score that year?
Self-contained rewrite: How many points per game did Petrovic score his first year at Cibona?