Paul Robinson has agreed to extend his Pompey stay.
The Millwall centre-back has impressed since he arrived at Fratton Park on the eve of the new season and has now signed up until January 5.
The 32-year-old has made five appearances and has slotted into boss Andy Awford’s plans with ease.
Awford said: ‘He has enjoyed it here, he has done very well for us and I’ve enjoyed working with him.
‘We’re delighted that Paul will be with us until January and we’re thankful to Millwall for allowing it to happen.’