Antonio Cassano has branded Cristiano Ronaldo "selfish" and believes the Juventus star is struggling to adapt to Andrea Pirlo's playing style.
Ronaldo has been the Turin giants' most productive player this season, scoring 23 times in 27 appearances so far.
But the 36-year-old had a quiet evening in midweek as his side were beaten 2-1 by Porto in the first leg of their Champions League last-16 tie.
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What was said?
While former Italy and Real Madrid forward Cassano admits Ronaldo is still at the top of the game, he believes he is going through a difficult spell this season.