Pompey returned to winning ways in League One with a comfortable victory at Priestfield.
John Marquis opened the scoring in the 2-0 success, stroking the ball home after receiving a back-heel from Ryan Williams.
And Michael Jacobs then completed a fine counter-attacking move to wrap things up for Kenny Jackett's side with just 17 minutes on the clock.
Fans can watch the key moments (top video), or register with iFollow to see extended highlights (middle video) and a full match replay (bottom video).
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