Rudiger's dominant performance against Liverpool is just another timely reminder of what Chelsea stands to lose if they fail to tie him to a new contract. Even though Salah scored that night he will admit to not having a good game. Rudiger was with him all through hustling, hassling, tussling, tackling and kicking him all day. A top class defender that gives 100% every time and makes life difficult for an attacker is very hard to come by in an era where everyone believes passing the ball is the number one quality of a defender. Rudiger's ability to combine passing ability with his no nonsense way of defending makes him one of the best out there. At least four top teams are already in talks with him. Others are glancing in admiration from afar. Chelsea may regret this if he gets away.