Juventus suffered a shock defeat at the hands of Hellas Verona in the Serie A, which put the title chase wide open, in as much as it was already open.
The 2-1 defeat at Stadio Marc'Antonio Bentegodi saw Sarri’s men slip behind Inter Milan who were 4-2 winners over AC Milan on Sunday - in the standings.
Ronaldo is reportedly furious at this.
Italian outlet Tuttosport claims that Ronaldo made his disappointment known after the game by refusing to take pictures with supporters who approached him.
The 35-year-old, who has already won league titles in England, Spain and Italy, was linked with a move to Bayern Munich last week.