Cristiano Ronaldo's first game for Juventus in his native Portugal ended in 2-1 defeat as FC Porto out-played the Italians for much of Wednesday's Champions League last-16, first leg tie. Iranian striker Mehdi Taremi put the hosts ahead after just a minute at Estadio do Dragao following a Rodrigo Bentacur defending error. And Mali striker Moussa Marega added a second straight right after the break. But Federico Chiesa pulled a goal back with eight minutes to go to keep Juventus afloat with the second leg in Turin on March 9. 

It was a lacklustre performance from the Italian giants, chasing their third Champions League title and first in 25 years. Record Champions League goal scorer Ronaldo, 36, drew a blank against a side captained by his Portuguese international and former Real Madrid teammate Pepe, as the visitors struggled to recover from their early blunder. Wojciech Szczesny had sent the ball out to Bentancur, who passed back to the Polish goalkeeper despite Taremi being just on front of goal. The Iranian quickly pounced to prod past Szczesny for his first Champions League goal. Porto pressed forward with Juventus almost conceding a second on 23 minutes as Szczesny cleared straight to Sergio Oliveira whose shot was deflected away from goal.