Liverpool hero Phil Thompson says they cannot rest on their laurels during this summer market.

Thompson believes his former club have made a mistake by allowing top target Timo Werner to join Chelsea from RB Leipzig this summer.

"I think you should always try and improve," he told Sky Sports. "When you're on the up, when you're playing well, that is when you should look to back it up.

"I would have loved to have seen him come but Liverpool have not done that, they're looking at it and it's probably costing too much.

"Timo Werner will be going 'maybe I might not get in there' and maybe [Jurgen] Klopp is thinking 'we can't afford to have somebody for that price just sitting on the bench'."

Thompson thinks now is the perfect time for his old club to drive home their advantage by adding quality to Klopp's squad.

"He'll [Werner] be alright for three or four years and I would have taken that risk.

"If he wanted to come I think you have to improve your team when you're on top and he would have improved us."