The Football Association have confirmed Pompey have not lodged an appeal against Luke Varney’s dismissal.
Steve Cotterill admitted he was considering disputing the sending-off against Hull.
Varney lunged in on Tigers defender James Chester in the 78th minute of Saturday’s 1-0 defeat.
That prompted referee Andy Haines to brandish a straight red card.
Afterwards, Cotterill described the decision as ‘harsh’.
Yet the FA have not received an appeal from the Blues.
Varney will now serve a three-match ban for the offence, deemed serious foul play.
The suspension begins immediately, ruling him out of Saturday’s visit of his former club Blackpool.
The former Crewe man will also miss the Fratton Park clash with Peterborough (September 27) and the trip to Leeds (October 1).
However, Liam Lawrence will be back for the visit of the Tangerines having served his one-match ban.
The Blues skipper was sent off against West Ham for two bookable offences – ruling him out of the Hull fixture.
Pompey’s disciplinary record is a concern this season.
They have so far received 19 yellow cards – more than any other Championship side.
Cotterill’s men have also been given two red cards.
However, that is not as many as Leeds’ four.
Last season Pompey received eight red cards, two of which went to Ricardo Rocha.