Dion Donohue has called for a big push to help Pompey achieve their play-off ambitions.
The Blues are just two points adrift of that all-important sixth spot ahead of Easter matches against Walsall and Wigan.
That is despite having to wait until last Sunday to record a first Fratton triumph of 2018, with Oxford defeated 3-0.
And despite his surprise that Pompey are still so well-placed, Donohue wants them to make the most of the opportunity.
He said: “It’s unbelievable how we still find ourselves in this position – two wins and now we’re back in with a shout.
“This calendar year hasn’t seen us pick up as many victories as we would have liked, yet we’re still within touching distance.
"It’s going to be a tough weekend and there’s bound to be some tired legs, but we’ll get on with it and give 100 per cent."
“Everyone seems to be beating everyone this season, so now it’s up to us to have a big push in the final few weeks.
“We got together recently and had a discussion on the training pitch about what we needed to do and have done exactly what we set out to do.
“We’ve obviously got a massive weekend ahead of us now, with a couple of big games in the space of just three days.
“If we were able to get maximum points against Walsall and Wigan then that would really put us in the frame.
“It’s going to be a tough weekend and there are bound to be some tired legs, but we’ll get on with it and give 100 per cent.”
Donohue found himself returning to a left-back role against Oxford, having played further forward in the previous couple of games.
He said: “I’ve mentioned before that I just want to be out there on the pitch – whether that’s in defence or in midfield.
“It’s good for me that I can do both and certainly helps with my game-time. If the gaffer needs someone to slot in, then I’m able to do the job.”