Cristiano Ronaldo in shock as Juventus crash out of the Champions League again - in pictures

Italian giants beaten in extra time by Porto - but manager Andrea Pirlo promises he will continue

Cristiano Ronaldo had a frustrating night as Juventus were knocked out of the Champions League by Porto. PA

Cristiano Ronaldo at the end of the match. EPA

Cristiano Ronaldo slumps to the ground at the end of the match. EPA

Ronaldo holds his shoulder after being tackled. AFP

Cristiano Ronaldo had a frustrating night as Juventus were knocked out of the Champions League by Porto. PA

Cristiano Ronaldo had a frustrating night as Juventus were knocked out of the Champions League by Porto. AP

Cristiano Ronaldo reacts in pain after being tackled against Porto. AFP

Cristiano Ronaldo had a frustrating night as Juventus were knocked out of the Champions League by Porto. Getty

Cristiano Ronaldo watches as Porto's players celebrate at the end of the match. AFP

Porto's Sergio Oliveira (l) celebrates with teammate Otavio after scoring his team's first goal. EPA

Juventus' Federico Chiesa levelled for Juve. PA

Cristiano Ronaldo looks dejected after Porto took the lead against Juventus. Reuters

Porto's Mehdi Taremi is shown a red card by referee Bjorn Kuipers. Reuters

Chiesa (C) celebrates with midfielder Aaron Ramsey after scoring his second goal. AFP

Sergio Oliveira of Porto celebrates with team-mates after scoring again during extra time. Getty

Porto's Sergio Oliveira (c) after his second goal. PA

Sergio Oliveira's free kick proved to be decisive. AFP

Adrien Rabiot scores Juve's third, but it was not enough. EPA

Juventus coach Andrea Pirlo said he remains committed to his work in Turin despite his side crashing out of the Champions League on away goals against 10-man Porto.

Cristiano Ronaldo's Juve won 3-2 after extra time on the night, but were knocked out at the same stage as last season after a 4-4 aggregate draw. That was despite playing with an extra man for much of the game after Porto's Mehdi Taremi was sent off in the 54th minute.

Their failure to reach the quarter finals was remarkably similar to last season's away goals exit to Lyon, with manager Maurizio Sarri sacked at the end of the campaign despite winning a ninth-straight Serie A title for Juve.

For all their domestic dominance, Juve have won just two European Cups compared to Italian rivals AC Milan's seven. Champions League glory is what the club craves, but Pirlo is adamant his journey as coach is just beginning.

"I don't know if Sarri was sacked for being eliminated from the Champions League," Pirlo told Sky Sport Italia. "I am the Juventus manager at the moment and I will work for a larger project, which goes beyond this season.

"This season is only the beginning of this project. We have young players who are growing game after game. The young players have played with desire and self-denial. We cannot say anything to them, they have given their all."

After falling behind in the first half to a Sergio Oliveira strike, a double from Federico Chiesa, either side of Taremi's dismissal, seemed to set Juve on their way to victory, but they could not find a crucial third, leaving the sides all square after normal time.

Pirlo's side continued to press in extra time, but one free-kick, through the wall, from Oliveira condemned Juve to their fate, despite Adrien Rabiot scoring a third for the Italian side soon after.

The blow leaves Juve just Serie A glory to play for - and they trail leaders Inter Milan by 10 points.

"I'm not happy to have to work with full weeks without European games, I preferred to go on in the Champions League," Pirlo added.

"To forget this elimination will take a few days but then we will have to look forward and try to move up the (Serie A) rankings. We are still in March."