Dani Alves will return to Camp Nou for the first time since leaving last summer and believes Juventus only have a 60% chance of going through to the semifinal despite having a three-goal advantage from the first leg.Dani Alves believes his Juventus side stand only a 60 per cent chance of beating his former club Barcelona – despite holding a 3-0 lead from the first leg.The full back will return to the Nou Camp for the first time since leaving Barcelona last summer after eight years at the Spanish giants, and will feature for Juventus, who defeated Barca 3-0 in their first leg quarterfinal Champions League clash.But Alves is all too aware of Barca’s attacking threats, and their historic comeback against PSG in the previous round after suffering a 4-0 defeat in the first leg. Read also: Mourinho lays into Martial, sends warning to strikerHowever, Juventus have a strong defensive record and the Serie A leaders will fancy their chances of reaching the Champions League semi-final.But Alves is not taking anything for granted and says they will need to be at their very best if they are to stop the likes of Lionel Messi, Luis Suarez and Neymar getting on the scoresheet.“I'm happy to be at the Camp Nou. It's a weird feeling being back. This is the first chance I have had to do it.“Our chances of going through? Right now, 60 per cent for us, but we have great respect for Barcelona."The Brazilian made 391 appearances in eight seasons with Barcelona, winning six La Liga titles, four Copa del Reys, three Champions Leagues and three FIFA Club World Cups.