Argentine forward Carlos Tevez has revealed that he is finding it difficult to watch Juventus' struggles in the early part of the season.
Tevez scored 50 times over two seasons with Juve, helping the Italian side to win back-to-back Serie A titles.
The Old Lady have only won one of their opening six league games this season, however, and the 31-year-old has said that he is "suffering" with their disappointing form.
"I'm following Juventus and I'm suffering to see them like this. I left a piece of my heart there," Tevez told La Cornisa TV.
Tevez returned to Boca Juniors in the summer transfer window, 11 years after first leaving the club to join Corinthians.