Kevin De Bruyne is expected to be sidelined for months with the injury he suffered during Napoli's victory over Inter Milan on Saturday.
The former Manchester City star left the pitch in tears just moments after scoring the game's opener from the penalty spot.
Having slotted his spot-kick away, De Bruyne immediately winced while clutching his hamstring as Napoli coach Antonio Conte watched on nervously.
He was treated by the Serie A champions' medics but unfortunately De Bruyne, who's struggled with injuries in recent years, had to be withdrawn.