Sadio Mane's move to Bayern Munich has left Liverpool with a fresh headache around the future of Mohamed Salah.
It is a warning that they will have to heed if they are to avoid seeing Salah join Mane in leaving Anfield this summer.
The Egyptian attacker has entered the final year of his contract at Anfield, much like Mane had before his departure on Wednesday.
It was a similar story with Mane who, rather than sign a new deal, decided to leave Liverpool to join Bayern after being offered a mega-money contract.