Former Chelsea defender Emmanuel Petit had told Chelsea to do everything possible and tie down Antonio Rudiger to a new deal.
Rudiger is in the final year of his contract with Chelsea and reports claim that the two sides are far from reaching an agreement.
According to Petit, Rudiger is one of the best defenders in the world at the moment and has likened him to the rugged defenders that were there during his playing days, like Arsenal legend Martin Keown.
“This guy is a survivor,” the 1998 World Cup winner told bookmakers.co.uk.
“Since Tuchel has been the manager he’s been one of the top defenders in world football.
“He reminds me of the crazy defenders I used to play with back in the day like Martin Keown.
“Those types of guys were always really tough on other players, and playing against them was both a physical and mental battle because they could make you feel bad on the pitch.
“I think Rudiger is similar, and it must be very tough to be on the pitch with him because you can disappear very quickly. He always plays the ball but he also plays the players and strikers know that and it can be intimidating.
“Sometimes he tries to destroy strikers, and I don’t really like that side of his game. But for me, the priority of a defender is to scare strikers.
“People might not understand that but it’s true, you have to scare them to try and stop them from scoring goals. For me, Rudiger is one of the hardest defenders in the world.”