From his official site today
Diego's debut for Juventus will come at Peace CUP in Spain
Spain - The brazilian midfielder Diego is in Andalucia, Spain at the moment. His new team, Juventus Turin, will take part in the Peace CUP, and Diegos debut für his new club will be the first game of this cup. After the preseason-training-camp at Pinzolo, the Team directly went to Spain.
"I am looking forwart to my first game for Juventus. We had a good training camp with hard training sessions. Since i came here i learned a lot about Italy and my new team. Here, I want to continue where I stopped in Germany: wining games and titles" said Diego.
12 teams participate in the peace cup. There are four groups with three teams, each. In the Group of Juventus there are Sevilla and the korean team of Seongnam.