On the team's return to action, Ronaldo struck the post with a 16th minute penalty as Juventus drew 0-0 at home to 10-man AC Milan in Turin.
It was still a positive result for the Bianconeri as they reached the final of the Coppa Italia on away goals, after drawing 1-1 at the San Siro back on February 13.
Despite Ronaldo's disappointing return to the pitch, Bonucci defended his team-mate during his post-match interview.
As reported by Goal, Bonucci told Rai Sport: 'Even the greatest miss (penalties). Cristiano is always important for us.
'He increases the pressure on opponents' defenders. He was unfortunate today and (AC Milan goalkeeper Gianluigi) Donnarumma did well.
Despite his miss, it was a penalty from Ronaldo that salvaged a 1-1 draw against AC Milan in February that proved crucial.
