On 20 May 2009 Flamengo announced the free transfer signing of Petkovic, despite previously having taken the club to court over unpaid wages in the amount of US$9 million. Though the two parties managed to settle the outstanding financial issues out of court prior to his signing, Petković's return was still met with a lot of scepticism, even outright opposition, from many people within the club as well as outside observers all of whom had doubts about his ability to perform at such an age. Some also expressed concern over the fact that he missed the Rio de Janeiro state championship part of the season, meaning that he hadn't played any competitive football in the 6 months since his dismissal from Mineiro.