<http://schema.org/description>
"Rafa Nadal said he must fully recover from a nagging knee problem known as Hoffa's syndrome before returning to competition and was a doubt for next month's Davis Cup semi-final against the United States."^^<http://www.w3.org/2001/XMLSchema#string>
<http://au.eurosport.com/tennis/davis-cup/2009/nadal-may-miss-davis-cup_sto3390509/story.shtml>