The Turin club managed to take the game away in stoppage time, but the rivals were the first to deliver the decisive blow.
Read the match report later on our website.
Juventus - Porto 3: 2 (first leg - 1: 2) Goals: Chiesa, 49, 63, Rabio, 118 - Oliveira, 19 (pen. ), 115 Juventus: Schesny - Cuadrado, Demiral, Bonucci (de Ligt, 75), Alex Sandro - Ramsey (McKenny, 75), Rabio, Arthur (Kulusevski, 101), Chiesa (Bernardeschi, 102) - Ronaldo, Morata.
Porto: Marquezin - Manafa, Mbemba, Pepe, Sanusi (Luis Diaz, 71) - Corona (Leite, 118), Oliveira (Lum, 119), Uribe (Grujic, 90), Otavio (Sarr, 62) - Marega (Martinez,.
Warnings: Chiesa, Cuadrado, Bernardeschi, Kulusevski - Otavio, Taremi, Oliveira, Mbemba Mehdi Taremi (Porto) was sent off in the 54th minute (second caution).