Petratos signing adds to Sydney-Brisbane rivalry Heading north: Dimitri Petratos. The growing rivalry between Sydney FC and Brisbane Roar will only get more intense after the Queenslanders announced the signing of Dimitri Petratos on Thursday. The 20-year old was considered one of the Sky Blues" hottest prospects after emerging through the club's youth team and then becoming a frequent contributor under Vitezslav Lavicka's reign as manager. However, the arrival of several players in similar positions - most notably Alessandro Del Piero - limited Petratos's opportunities in the past year. The frustration boiled over for the youngster, who had a public run-in with goalkeeping coach Zeljko Kalac at training before seeking a transfer elsewhere. He eventually agreed terms with Kelantan, spending six months with the Malaysian club, before accepting an offer from Brisbane. "I'm excited to be back playing football in Australia and to be here in Brisbane particularly," Petratos said. I've enjoyed watching the way the Roar play over the past couple of years and now I'm excited to be a part of it. Petratos made 30 appearences and scored five goals during his stint with Sydney and was tipped by many to go on to bigger things. Going the other way this season is Matt Jurman, who returned to the Sky Blues after failing to cement a first team place at the Roar. Joining Petratos at Suncorp Stadium will be Melbourne Victory utility Diogo Ferreira, pleasing coach Mike Mulvey. "The addition of Diogo and Dimitri brings quality and versatility to our squad," Mulvey said. I've been impressed with the determination they've both shown since they arrived. They are good additions to the squad and have a desire to be successful. However, Brisbane confirmed they would be losing on-loan midfielder Steven Lustica, who has returned to parent club Hadjuk Split.