Nolf's parents still mourn son's death in Qatar

Frederiek Nolf died in his sleep

Frederiek Nolf died in his sleep (Image credit: TDWsports.com / Topsport Vlaanderen)

The Tour of Qatar starts on Sunday, and for one family in Belgium the 2010 race will mark a sad anniversary. One year ago Friday, in Doha, Topsport Vlaanderen professional Frederiek Nolf passed away at the age of 21, suffering a heart attack while he slept.