The 49-year-old veteran international central defender knows well the experienced manager of the Catalan giants, Ernesto Valverde, who has worked at Greek Super League and Olympiacos for three seasons (2008-09, 2010-12), while he will also attend match between Barcelona and Athletic Bilbao on Sunday evening.

Panathinaikos manager Marinos Ouzounidis to attend Barcelona's trainings