Football League clubs have voted to return to using seven substitutes next season.
Following a motion put forward by Birmingham and Derby, the proposal has been accepted after a League AGM in Portugal.
The decision comes just 12 months after bench sizes for Football League clubs were reduced to five in a bid to reduce costs.
At the time, it was heavily criticised by many managers, including former Blues boss Steve Cotterill.
Current Pompey manager Michael Appleton was also keen to go back to using seven subs so that clubs have more options from the bench on matchdays.