Antonio Rudiger has been linked with a move to Bayern Munich.
The Blues defender will be entering the final six months of his contract this January and is yet to agree to an extension at Stamford Bridge.
Since Tuchel’s arrival earlier this year, Rudiger has become a crucial figure in Chelsea’s defence and the back three have conceded only four Premier League goals this season.
The 28-year old defender has been linked with a host of European clubs especially Bayern Munich and Real Madrid.
Rio Ferdinand suggests that the defender should choose Bayern Munich if he leaves Chelsea in the summer.
Ferdinand said: “Tuchel’s come in and changed the fortunes of all those players’ lives. They won the Champions League immediately and I watched Chelsea last weekend and they’re formidable.
“They are a team. Rudiger’s playing the best football I’ve ever seen.
“As a player do you risk changing that, and risk a downturn in form and performance and risk it by going somewhere else? I only see Bayern Munich as being on the same level.
“I think Bayern Munich are above Chelsea.
“But if he goes to Bayern Munich he’s going to be in a genuinely important league and he’s got a chance of winning the Champions League with the players there.
“I can’t see him going to Real Madrid and Barcelona where the teams are in transition.”