Following their disappointing loss to Gillingham a couple of weeks back, Portsmouth needed a win to get their Playoff hopes back on track and that they did with a win away over Oldham the last time out. They are now 5 points behind the 6th position and they need to regularly get the three points if they want to maintain their promotion hopes.
Oxford United was another team that would have been thinking of winning promotion or at least finishing the season inside the Playoff spots when the season began, but their form so far means they would not even be able to make it to the Playoffs.
They had gone on a run of 5 matches without a win, before the last time out as they secured a win over Peterborough. They have also confirmed Karl Robinson as their new manager, he would be looking to set them up for a good end to the season and potentially push for promotion in the next campaign.
These two sides have very little that separates them at the moment and when they are at their best creatively, Oxford is probably the better side among the two, but home advantage and that recent win should give Pompey some edge here.