Pompey have spoken of their disappointment after losing the services of Paul McCallum for February.
The on-loan West Ham striker was slapped with a four-match ban by the Football Association having pleaded guilty to a charge of improper conduct.
The punishment was for slapping the hand of referee Lee Collins as he held a red card in his direction during last month’s visit of Southend United to Fratton Park.
Added to a three-match ban for violent conduct which warranted the sending off, McCallum’s punishment now stands at seven matches.
After missing last weekend’s trip to Wycombe, six remain – covering all the Blues’ fixtures this month.
And first-team coach Paul Hardyman revealed Pompey’s frustration at McCallum’s costly actions.
He said: ‘It is frustrating. The lad has come in and we were hoping he would be available for us. Now we haven’t got him until March.
‘It’s disappointing but you learn from your mistakes and I am sure the boy will do just that, although he is ruing what he did.
‘He came here to play first-team football and now he’s not playing any football.
‘I understand he wanted to get in there and try to get the equaliser and got frustrated, it’s one of those things where you see the red mist and that happens.
‘Unfortunately, though, it is not acceptable.
‘In the game we went a man down and then lost him for the next seven games, which is disappointing to say the least.’
Pompey boss Andy Awford has revealed the on-loan striker will not be sent back to the Hammers, despite the length of his ban.