The organisation has published its written reasons for expelling the club from the play-offs and docking them points for next season.
Southampton were found guilty of a “deplorable” act of putting pressure on a junior member of staff to spy on Middlesbrough, the EFL has said.
Saints are now under investigation by the Football Association in relation to the ‘Spygate’ scandal which cost them their place in the Championship play-off final.
The EFL has published its written reasons for expelling the club from the play-offs and docking them four points next season.
