Any failings on Cristiano Ronaldo's part are made up for 100-fold, says Juventus coach Maurizio Sarri.
Juventus were made to work hard by Parma, but a pair of Cristiano Ronaldo goals ensured the champions claimed an "important" win.
A typically inspirational two-goal turn from Cristiano Ronaldo saw Juventus open up a four-point gap to Inter at the top of Serie A.
Paris Saint-Germain are reportedly trying to lure Pep Guardiola from Manchester City.
Paulo Dybala shone in Cristiano Ronaldo's absence in midweek but Maurizio Sarri has backed his star forwards to work well in tandem.
Barcelona and Juventus could be set for a surprise player swap this transfer window.
Barcelona captain Lionel Messi claimed a sixth Ballon d'Or in December, moving ahead of Juventus' Cristiano Ronaldo.
Gonzalo Higuain set Juventus on course for a 4-0 Coppa Italia win over Udinese with a stunning opener, created with help from Paulo Dybala.
Juventus coasted through to the Coppa Italia quarter-finals, with Paulo Dybala and Gonzalo Higuain sinking Udinese.
Cristiano Ronaldo was hit by sinusitis on Wednesday, meaning he missed Juventus' last-16 clash with Udinese in the Coppa Italia.