3. Danny Cipriani (England)
After making his England debut in the 2008 Six Nations, Danny Cipriani appeared to have the rugby world at his feet. The then-21-year-old produced a magnificent display as England thumped Ireland 33-10; surely England had found the heir apparent for legend Jonny Wilkinson.
Sadly this was not the case as controversy after controversy followed, meaning despite his incredible talent the 32-year-old has accumulated just 16 caps.
2. David Bishop (Pontypool & Wales)
1. Rupeni Caucaunibuca (Fiji)
The Fiji winger was one of the stars of the 2003 Rugby World Cup and signed mega deals to play in France which should have set him up for life.
However, throughout his career there were instances where he would disappear for weeks, with no one knowing where he was. But often he had returned to the remote Fijian village where he’s from, having struggling to deal with the pressures of professional rugby.
He had all the talent in the world.