Watch the action from Kenilworth Road victory
Matt Tubbs grabbed a late winner as Pompey preserved their unbeaten league run with a 2-1 triumph at Luton.Gareth Evans had fired the Blues into an early advantage before Craig Mackail-Smith levelled from the penalty spot.
But with a draw looking likely, Tubbs pounced after fellow substitute Conor Chaplin's shot had been saved.
Watch the goals below or subscribe to Pompey PlayerHD for extended highlights.