Toni Rudiger says he's happy to help Chelsea recruit a defender from Bayern Munich.
David Alaba will be in high demand after he announced he will be leaving the current champions of Europe in the summer - and could be on his way to west London.
Chelsea are reportedly also interested in Jerome Boateng and Niklas Sule, and any advantage they hold in potential negotiations could prove vital.
"If Chelsea were to decide on one of the three players as a transfer target, I would be available to answer any questions," Rudiger told Christian Falk of Bild.
“I know Jerome and Niklas very well and I've already had contact with David Alaba," he added.
