Ryan Taylor is gunning for his former club as he seeks to end his Oxford United scoring duck.
The striker has yet to hit the back of the net during nine appearances for the U’s following his summer arrival.
Taylor made the Kassam Stadium switch following his release from Pompey after 16 goals in 59 outings.
And he’s targeting tomorrow’s encounter as the occasion to finally get off the mark.
He said: ‘The perfect time to score my first goal would be tomorrow, it would be nice to get a goal.
‘I keep working hard on the training pitch and the goals will come.
‘If I get the goal it gives me that bit of confidence.
‘I’m not a massive confidence player, but once I get one I tend to start flourishing and getting a few, but I want to show the fans what I can do as well.
‘We weren’t very happy with the result on Saturday and we can put it right in a massive game against Portsmouth. I’m looking forward to it especially.
‘The manager (Paul Cook) had his own ideas and good luck to them, but I’m an Oxford United player now and I’m ready to go.
‘I enjoyed my time there, but I’ve moved on now. I’m an Oxford player and hopefully we can get promoted.’