VfB Stuttgart say they're yet to hear from Chelsea about young defender Antonio Rudiger.
Rudiger has confirmed the interest of Manchester United, while his agent this week revealed summer contact with West Ham United.
Chelsea have also been linked with the youngster in recent days, but VfB chief Jochen Schneider insists there's been no official approach.
He explained: "We have among others loaned Oriol Romeu from Chelsea, so we've a good relationship.
"If Antonio was of interest, they would make themselves known to us."
