Irish Paralympic legend Jason Smyth has announced his retirement at the age of 35.
Known as the "Fastest Paralympian on the Planet", Smyth won 21 gold medals during a glittering career spanning 18 years.
The Derry native won six gold medals at the Paralympics and retires having never lost an event throughout his career.
Smyth appeared at four Paralympic Games and retires as the record holder at both the 100 and 200 metre events.
He also won eight gold medals at the World Championships, six golds at the European Championships and a gold in the World Indoor Championships.
It's understood that Smyth is now undertaking the role of Strategy Manager at Paralympics Ireland.