Patrick Agyemang is eyeing a first-team spot after proving his Pompey fitness.
The striker completed 90 minutes for the reserves in their 3-2 victory over Peterborough on Tuesday.
It followed a 16-minute cameo for the Blues in Sunday’s League Two defeat at Burton.
Agyemang is now convinced he is over the hamstring problem which ruled him out of the first eight matches of the campaign.
And the 33-year-old is desperate to finally kick-start his push for a starting spot in Andy Awford’s side.
He said: ‘I have been back for more than two weeks now and fully trained properly with no twinges.
‘I’m feeling good at the moment.
‘Even when I was out injured I was doing hard running with Duggo (Sean Duggan) so they were getting me prepared for when I returned.
‘I felt good on Sunday coming on against Burton with the team 2-0 down with a mountain to climb and in the reserves there were no twinges, no nothing.
‘The only thing missing against Peterborough was a goal. I had a few opportunities and should have taken them but my general play was very good and I made a bundle of chances as well.
‘But for me personally it was about getting 90 minutes, getting confident and taking that type of confidence into the first team.
‘It has been hard to basically start again, all that work pre-season and I get injured and in the meantime the team has done well.
‘The core work from the summer is still there, it’s just you lose a little bit of the level you were at after being out for almost four weeks.
‘No matter how much running you do it doesn’t substitute for playing games.
‘It is so much harder playing games rather than just running all day.
‘I’m feeling really good now though, I’ve just got to bide my time until I get in the side.
‘And once I do it is about staying in.’
Agyemang damaged his hamstring on the eve of the final pre-season friendly against Charlton.
It was a thunderous blow to a player who had worked out before the return to summer training to ensure he was in optimum fitness.
Now he’s ready to go again.
He added: ‘I worked hard coming into pre-season so when we returned I wouldn’t find it so difficult.
‘Obviously I am 33 now and it’s tough to keep up with the young boys.
‘I did that and sometimes was better than a lot of them – then on the Friday before Charlton I did my hamstring.
‘I made a run down the line then the ball was played behind me and as it did I stopped at full pace and my hamstring went straight away.
‘It was a training exercise so I should have just carried on running really instead of pulling up. I have learned never to do that again!’