Footballers may soon be wearing an electronic chip in their shirt to help warn of medical problems, reports BBC Sport.
The International Football Association Board (Ifab) will decide in March whether to run a trial of the system.
The measure is being considered after Bolton's Fabrice Muamba suffered a heart attack on the pitch last year.
Ifab, which makes the laws of football, consists of the FAs of England, Wales, Scotland and Northern Ireland who get a vote each, and Fifa, which has four.
Any electronic communication between the players and staff in the technical area is currently banned.
The issue will be on the agenda when Ifab has its annual meeting in Edinburgh on 3 March.