Federico Chiesa handed Juventus hope for the second leg with his consolation against Porto in a 2-1 defeat at Estadio Do Dragao.
Juventus conceded early in both halves before fighting back to reduce the deficit in their last 16 first leg tie tonight.
The second leg is scheduled for March 9, at the Allianz Stadium in Turin, Italy.
It was the worst start for the Bianconeris as Mehdi Temi capitalized on Rodrigo Bentancur’s poor back pass to put the home side in the lead.
Sergio Oliviera almost made it two after goalkeeper Szczesny gifted the winger a pass in Juve’s build-up from the back. Unfortunately, Oliviera’s effort took a deflection off Matthijs de Ligt.
Definitely, worst night as captain Giorgio Chiellini went off with a calf problem after just 35 minutes, making way for Merih Demiral.
Juve eventually went down by two within the first munites of the second half where Wilson Manafá run down the right and pull back for Moussa Marega, who fired past Szczesny from close range.
Sergie Oliviera again failed to put his name on the score sheet after going through the defenders and forced from busy Szczesny.
With eight munites to full time, Chiesa got a precious goal from 12 yards out to boost Juve’s chances of making the last 8.
Juve could have won a penalty in injury time after Zaidu brought down Ronaldo, but the referee waved play on with the VAR not intervening.