Drazen Petrovic (pronounced [draZen petrovitc]; October 22, 1964 - June 7, 1993) was a Croatian professional basketball player. A shooting guard, he initially achieved success playing professional basketball in Europe in the 1980s, before joining the National Basketball Association (NBA) in 1989. A star on multiple stages, Petrovic earned two silver medals and one bronze in Olympic basketball, a gold and a bronze in the FIBA World Cup, a gold and a bronze in the FIBA EuroBasket, and two EuroLeague titles. He represented Yugoslavia's national team and, later, Croatia's national team.

After spending a year serving the mandatory time in the military, Petrovic followed his brother's footsteps and moved to Cibona to form, at that time, the best backcourt duo in Europe. The very first year in Cibona he won both the Yugoslav League championship and the Yugoslav National Cup. To top it all off, the 87-78 victory over the Spanish League club Real Madrid, to which Petrovic contributed with 36 points, brought him and Cibona their first European Cup title. The second came the following year, as Petrovic scored 22 points and Cibona defeated the USSR Premier League club Zalgiris Kaunas, which starred the legendary Arvydas Sabonis. The same year brought another Yugoslav national cup title for Cibona, seeing Petrovic score 46 against the old rival Bosna. In 1987, Petrovic earned his third European trophy: a 2nd-tier European Cup Winners' Cup title against the Italian League club Scavolini Pesaro, whose net he filled with 28 points.  Petrovic's scoring average during the four years with Cibona stood at 37.7 points in the Yugoslavian first division and 33.8 in all of the European wide competitions that he played in, with personal one-time bests of 112 (40/60 FG, 10/20 3Pts, 22/22 FT) in the Yugoslavian League, and 62 points in the 3rd-tier European league, the Korac Cup, respectively. His scoring sheet was often known to show 40, 50, even 60 in a single game; in a 1985-86 season European League game against Limoges, Petrovic scored ten 3-pointers, including seven in a row during a first half stretch, for a final tally of 51 points and 10 assists; the same season he scored 45 points and dished out 25 assists against the reigning Italian League champions Simac Milano.  Petrovic needed new challenges, which Cibona and the Yugoslavian League could not offer. Across the Atlantic, the Portland Trail Blazers of the NBA had already used their third round pick on young Petrovic in 1986. However, he decided to postpone his departure to the United States. In 1988, he signed with Real Madrid instead, for at that time a hefty sum of around US$4 million. The transfer wasn't without controversy as the Yugoslav sporting laws stipulated that players weren't allowed to professionally move abroad until reaching 28 years of age, while Petrovic was still only 23 when he signed with the famous Madrid club. In 2014, Jose Antonio Arizaga, the sports agent who played a key role in Petrovic's summer 1988 transfer from Cibona to Real, recalled a few details from this transaction: "I spoke to Mirko Novosel, Drazen's coach at Cibona, and he told me two things. One, every problem in Yugoslavia can be taken care of with the right amount of money, and two, if Drazen leaves, every other player under 28 will be leaving and it'll be chaos. So, you can imagine all the individuals I had to bribe and all the places where I had to pay up in order to circumvent this law".

Using a quote from the above article, answer the following question: What position did Petrovic play?
the best backcourt duo in Europe.