Prop Alex Corbisiero touched down after just two minutes, to put the Lions ahead against Australia in the series decider.
Full-back Leigh Halfpenny kicked the conversion from in front of the posts, to put the Lions 7-0 ahead.
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A charity match is to be held later tonight to raise funds for a former Cardiff Devils player with a terminal neurological condition.
Staying rather cloudy for much of the day in the south, perhaps with a little rain at first.
Mostly dry with clear spells developing tonight in the north, which will allow some mist and fog patches to form.