Extended and short highlights packages avaiable
Pompey drew 2-2 at Oxford in their final Leasing.com Trophy group match, then won 5-4 on penalties to take the bonus point that secured top spot.
Bradley Lethbridge equalised for a youthful side after Matty Taylor had put the hosts in front, while Anton Walkes looked to have won it with a late goal.
But Rob Dickie levelled for United in stoppage-time and both sides missed in the shoot-out, with Sam Long firing the decisive effort over the bar.
All fans can watch the key moments for free (top video), while iFollow subscribers are able to view extended highlights (middle video) and the full 90 minutes (bottom video).