Former Liverpool fullback Stephen Warnock has urged management to secure Sadio Mane to a new contract.
The Reds' forward has enjoyed a standout season for his side, attracting interest from Real Madrid.
Mane is under contract at Anfield until 2023, and there is no indication that Liverpool are planning on offloading the Senegalese star.
But Warnock told Sky Sports: "It is important that they try and tie him down because you want to keep your best assets at the club to help bring other big players in.
"Those players want to play with the best not second best.
"From Mane's point of view he's got a manager there that adores him, fans that adore him and he knows the system that he's playing in.
"Don't forget the way Liverpool have grown over the last four to five years under Jurgen Klopp. In the last two years they've elevated themselves into an elite team now and Mane is arguably Liverpool's crown jewel in all of that.
"I'm sure if he was to knock on the door and ask for a new contract he'd be rewarded for it as well."