Katie Archibald, the Scottish track cyclist who won gold medals at the Rio and Tokyo Olympics , has announced her retirement with immediate effect. The decision means the 32-year-old, who also won multiple world, European and Commonwealth titles, will not compete in July’s Commonwealth Games in Glasgow. Archibald said: “The draw of the real world has been pulling me for a while, but I’ve been too scared to leave the world I know and love and, ultimately, to let go of something I’m good at.” She is now retraining to be a nurse. “I’ve fallen completely in love with the whole thing,” Archibald said. “When I let my friends and teammates know I was retiring from sport, they assumed it was because I wasn’t coping doing both.” Archibald, who also won team pursuit silver at the Tokyo Games along with gold in the Madison, first came to prominence through grass-track racing against men at events such as the Highland Games. She was then selected for the Great Britain academy squad at Manchester velodrome.…