Two months ago, I wrote about M50 thrower David Burrell in Britain, who is suspended until October 2021 for refusing a drug test, possibly at home. Now comes news that an M55 cyclist — Scott Gross of Orange Park, Florida — has accepted a 4-year suspension for refusing an out-of-competition drug test May 3. This hits close to home. So I wrote USATF national masters chair Rex Harvey whether masters tracksters could get a knock on the door. He replied: “All USATF athletes are liable for testing at any time and any place.” While conceding that MTF has no formal…