Scarlets completed a superb second-half LV= Cup comeback to beat London Irish in Llanelli, with Harry Robinson, Adam Warren, and Kyle Evans all going over after the interval.
Former Scarlet Andy Fenby had given the visitors the lead at half-time, with Myles Dorrian cancelling out Steve Shingler’s two early penalties after both Ken Owens and Shingler were sent to the sin-bin.
But a revitalised home side wrestled the game away from the Exiles in the second-half, and not even a late Theo Brophy Clews score could rescue London Irish from their third defeat of the competition.
Scarlets got straight on the scoresheet when Shingler slotted a straight-forward penalty through the posts with just two minutes on the clock.
But the opening quarter of the game was a stop-start affair, with both sides making costly errors with the ball in hand.
And the conditions did not make things any easier for both sides when the sleet and snow started to fall after 20 minutes.
Scarlets scrum began to put the Exiles under pressure, and another Shingler penalty after 20 minutes brought the score to 6-0.
But Myles Dorrian and Tom Fowlie brought the game to life a minute later, with a fantastic move releasing former Scarlet Fenby to go over the whitewash under the posts.
Dorrian easily added the extras, and then kicked another three points with a penalty after 25 minutes to take the score to 10-6.
Things went from bad to worse for the hosts, as Irish attacked again and piled the pressure on the Scarlets defence who were camped in their own 22, causing Owens to be sent to the sin-bin on 36 minutes for collapsing the maul.
And Shingler joined him there two minutes later, giving Dorrian the chance to make it 13-6 at half-time with the 13-man Llanelli-based outfit at sixes and sevens.
The depleted Scarlets defended well at the start of the second half, and after Frazier Climo missed a penalty attempt, Owens and Shingler returned to the fray and the game was turned on its head.
Scarlets were the team in the ascendancy and Robinson touched down on 54 minutes, after some great work to collect a long pass by Shingler, who added the extras to level the scores.
Rhodri Williams then made a brilliant break six minutes later to create a simple finish for Warren to complete the turnaround, and Shingler was again on the money with the boot for the conversion.
The hosts then added insult to injury with another excellent score. This time replacement Evans was the man to go over.
His chip through from the base of the scrum was fumbled by the Irish defence and collected by Robinson, who fed the winger to charge through.
But a determined Exiles side refused to give in, and a try from replacement Brophy Clews, who scored with his third touch of the game, set up a nervous finish for the hosts with just seven minutes remaining.
Scarlets kept the ball well and ran out the clock to win 27-18, their first win of the competition taking them within touching distance of Wasps in Pool 3.
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