Last summer Lewis Holtby's departure from Schalke was softened by the fact that the club had a number of emerging youngsters to take his place. Julian Draxler was at the front of the queue, though he had broken into the first team some time before, but now the club may well be gearing up for life without their latest prized asset.
World class left-backs are a rarity in the modern game. Roberto Carlos set a benchmark for the marauding full-back during his playing career but other than Ashley Cole in his prime, it's difficult to pinpoint a standout player in the position. In the Bundesliga however, two have been winning the adulation of the neutral - David Alaba andRicardo Rodríguez.