Ranked: Gianluigi Buffon, Iker Casillas and the greatest goalkeepers of all time

 So, Superman has finally hung up his cape. On Wednesday afternoon, Gianluigi Buffon announced his retirement, bringing an end to an incredible, 23-year career. The tributes have been flooding in, with some esteemed judges labelling the Italy icon as the greatest goalkeeper of all time.

But is Buffon really the best shot-stopper we've even seen? Does he really rank above his legendary compatriot Dino Zoff? Or Iker Casillas, who won it all at international and club level? And what about Lev Yashin, the man who set the standard that all goalkeepers have since strived to meet?

Below, GOAL counts down the finest goalkeepers in football history...