Cristiano Ronaldo has come under-fire for his "rotten" performance in Juventus' shock Champions League exit to Porto.The Old Lady were dumped out at the last-16 stage of the competition on away goals after an incredible night in Turin.Trailing 2-1 from the first-leg, Juve fell further behind in the contest when Sergio Oliveira put Porto 3-1 up on aggregate.Two goals from Federico Chiesa took the tie to extra-time with Porto down to 10-men after Mehdi Taremi was sent off.Oliveira looked to have sealed the tie with five minutes remaining, only for Adrien Rabiot to set up a grand-stand finish.Porto clung on for a famous Champions League victory, and after the match attention turned to Ronaldo's performance.The 36-year-old was brought to the.
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