MotoGP: Valentino Rossi to retire at the end of 2021
Rossi revealed that there was an option in place for him to join his brother Luca Marini at his own team in MotoGP
After Spanoulis, Nikos Zisis retires from basketball after a successful 21-year career (videos)
"The time has come - It is a completely conscious decision, because I know I have given everything"
Magawa the hero rat retires from job detecting landmines
In a five-year career, the rodent sniffed out 71 landmines and dozens more unexploded items in Cambodia