By Andrew Gould Track and field star Allyson Felix announced her plans to retire after the 2022 season. Felix will step away with 11 Olympic medals, the most by any U.S. track and field competitor. She confirmed her decision with anInstagram post on Wednesday (h/t On Her Turf’s Alex Azzi). As a little girl they called chicken legs, never in my wildest dreams would I have imagined I’d have a career like this. I have so much gratitude for this sport that has changed my life. I have given everything I have to running and for the first time I’m not sure if I have anything left to give. I want to s…