With the Dragons pressing the Sharks goal line in the moments after half time the visitors went close to reducing the margin to six - and they would have - if not for a courageous Ben Barba tackle.
Leading by 12 with near on half an hour remaining, the Sharks' front line was breached by Dragons skipper Ben Creagh.
With the prop looking a certainty to score, the Cronulla super-sub pulled off what commentators have called the 'tackle of the year', to keep ensure his side retained a two-try buffer.
Re-watch Barba's special effort in this week's 'Play of the Week' highlight package, now playing on Sharks TV.
