Football's boulevard of broken dreams is littered with countless "what-ifs?" and "if-onlys." Players who were once big names in their youth saw their careers peter out in the most underwhelming fashion.
Whether it was due to injury, an ill-advised move or just because of an inexplicable loss of form, age has been unkind to many a footballer.
Here are 25 who were washed up by age 25.
As always, this list is intended to spark debate rather than end it.