Nick Fairley has been placed by the New Orleans Saints on the reserve/non-football injury list.
Fairley was initially diagnosed with a heart condition at the combine but he went on to play seven years in the NFL.
Fairly signed a four-year, $28 million deal with the Saints in March.
Fairley visited a cardiologist last month and since then has been away from OTAs and out of communication with many of his teammates.