Petrescu plays for the current Finnish champions, Tampere United. Before he joined United he played for another Finnish Veikkausliiga-side, F.C. International Turku. He has also played forLeicester City F.C. in the English league, making just one appearance.
Petrescu became well known after playing in the 2003 FIFA U-17 World Championship, which were held in Finland. He scored a goal in the opening game against China in the tournament.