Hermann Hreidarsson is closing in on a Pompey return.
The veteran defender is back in training following an Achilles injury.
The problem saw him seek treatment in his native Iceland during the last international break.
Now Hreidarsson is being gradually eased into first-team sessions in training.
So far there has been no reaction to his Achilles tendon, which is in a different leg to the one which nearly finished his career in March 2010.
Joe Mattock was signed on loan last week to give Michael Appleton options on the left-hand side of defence.
It appears the Blues boss could now be further boosted as Hreidarsson nears first-team availability.
Appleton said: ‘Hermann has probably had about six or seven days training now.
‘He’s one of those where, at the minute, we are off-loading him, so he is not training every single day.
‘He’s training a couple of days and is then off a couple of days – and is then training a couple of days after that.
‘We will be doing that until we get him fully up to scratch.
‘But, luckily, he has had no serious reaction from the injury so he is pretty much raring to go as and when, really.’
On Hreidarsson’s well-known joker antics, Appleton added: ‘I keep hearing stories of some of the things he has done in the past, which is a bit of an eye opener.’
Hreidarsson has not made a first-team squad since August 13.
On that occasion he was in the starting line-up for the Blues’ 1-0 defeat to Brighton.
The fans’ favourite then fell out of favour with former manager Steve Cotterill, before his latest Achilles problem flared up.