British sprinter Dwain Chambers is aiming to relaunch his career in American football during an NFL Europe training camp in Cologne this week.
Chambers will try out at the wide receiver and cornerback positions
The European 4x100m champion returned to athletics in June following his two-year ban for failing a drugs test.
If successful, the 28-year-old could go on to attend a camp in Florida at which NFL Europe franchises recruit players.
Hurdler Renaldo Nehemiah took a similar path, playing for the San Francisco 49ers and even winning the Super Bowl.
Chambers claimed his first major gold medal four years ago in Munich to seal the European title before testing positive for the steroid THG.
It was after his relay victory in Gothenburg in August that Chambers first revealed his ambition to try another sport.
I am very keen to see him in action on the field this week and to find out what he can do with an American football in his hands
Tony Allen, Director at NFL Europa
"American football has interested me for a long time and I'm excited to see what opportunities might be there for me in the sport," he said at the time.
"It is a serious option for me at the moment."
Chambers will be worked out at the wide receiver and cornerback positions during his week in Germany.
"I am very keen to see him in action on the field this week and to find out what he can do with an American football in his hands," said Tony Allen, Director of International Player Development for NFL Europa.
"He is obviously an outstanding athlete and has potential that we are eager to explore."
NFL Europa - formerly known as the NFL Europe League - is a feeder league to the NFL in America and will kick off its 15th season in April next year.
Each NFL Europa team carries at least eight home-grown international players on its roster.