In sports, we're always searching for the next big thing. But the hype is often inaccurate, and sometimes reality falls spectacularly short of expectations. With that in mind, we tapped a panel of more than 60 ESPN experts to identify the top 25 instances of unfulfilled potential. Some of the athletes who made the list squandered their prodigious talent; others were slowed or stopped by injury. All left us wanting more.
Reporting by ESPN.com's Thomas Neumann, Arash Markazi, Paul Lukas and Kevin Stone
