Paul Cook has pencilled in Adam McGurk for a comeback by the end of the month.
The forward has been absent for the last six matches after injuring his ankle while warming up before Bristol Rovers.
At the time he had netted in successive games, including a stunning leveller at Oxford United.
Now the Blues have been boosted by McGurk’s return to outside training on Monday.
It is the latest important step towards breaking back into Cook’s first-team squad.
And Pompey’s boss believes the ex-Burton Albion man could return in time for the October 31 trip to Notts County.
He said: ‘McGurk trained well on Monday and I think after the weekend we could see him back and available, for Notts County possibly.
‘A fit McGurk is a good asset to have at this club so fingers crossed we can look at him from that match.’
Ideally the 26-year-old would be blooded in a reserve friendly before challenging for the first team.
However, that was not possible this week due to the League Two visit of Stevenage on Tuesday night.
In addition, according to Cook, at present nothing is yet finalised for a friendly match to take place next week.
McGurk, who arrived on a free transfer in the summer having turned down a new deal at the Pirelli Stadium, has made nine appearances this season.
He had begun to establish himself as a lone striker ahead of Matt Tubbs when injury struck last month.
The ex-Aston Villa trainee had netted on his debut against Derby in August.