Irish Paralympic legend Jason Smyth calls time on 18-year career

Smyth, known as the "Fastest Paralympian on the Planet" won six gold medals in the 100m and 200m races at the Paralympics.  

LEGEND OF THE SPORT: Paralympic legend Jason Smyth retires undefeated as a 6 time Paralympic gold medal winner and World Record Holder. Pic: Harry Murphy/Sportsfile

Irish Paralympic legend Jason Smyth has called time on his 18-year athletics career. 

Smyth - winner of 21 gold medals, competitor at four Paralympic games - retires undefeated and as the holder of the 100m and 200m world records.