Watch key moments from League Two drawPompey recovered from a poor first half to maintain their unbeaten league record at Oxford.
Liam Sercombe opened the scoring for the hosts after the Blues had failed to properly clear a corner.
But Adam McGurk rescued a point following the interval, courtesy of a fine long-range drive.
Pompey then had to see out the closing stages with just 10 men after skipper Michael Doyle was dismissed for a second bookable offence.
Watch the key moments below or subscribe to Pompey PlayerHD for extended highlights.