Barcelona have confirmed that captain Marc-Andre ter Stegen has undergone surgery for a recurring back problem. There is plenty of intrigue surrounding his diagnosis, given the length of his injury

Germany goalkeeper Marc-Andre ter Stegen has successfully undergone lower back surgery, his Barcelona club said in a statement on Tuesday. The club added that "he is unavailable for selection, and his recovery will determine when he can return.

The goalkeeper predicted the timeframe of his recovery from back surgery and it has not gone down well with some executives at the club