Paulo Dybala was in tears as he left the pitch during Sunday's Serie A clash between Juventus and Sampdoria having suffered an injury.
Dybala was limited to just 14 league starts last season as he struggled with his fitness, but has started each of Juve's five Serie A game so far this season.
He scored on the opening day against Udinese and took his tally for the season to two with an exceptional first-time strike from the edge of the area to give Juve the lead against Sampdoria.
However, his day came to an abrupt end 12 minutes later when he pulled up with an apparent muscular problem and immediately had to be taken off.
The 27-year-old was visibly distressed and emotional as he left the pitch, with his team-mates comforting him as the Argentine forward used his shirt to wipe away his tears. He had been hugely impressive, creating three chances and having two attempts.
It is not just a worry for Dybala, but also Juve boss Massimiliano Allegri, whose side have had a poor start to the Serie A campaign, taking only five points from their opening five matches, while the Bianconeri face Chelsea in the Champions League on Wednesday.