Marc-Andre ter Stegen won't rule out leaving Barcelona.

The Germany goalkeeper insists nothing is set in stone in terms of his future at the Nou Camp.

Ter Stegen, 27, made the admission when discussing tonight's El Clasico: "In football, you never know what will happen.

"I want to make the club happy and leave my mark.

"These are the games you are looking forward to, they are the ones that excite people."