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Vasyl Lomachenko 's devastating body shots proved the difference as the Ukrainian outclassed Luke Campbell on his way to defending his world lightweight titles.
The Hull fighter produced a meticulous game plan behind his jab, but was eventually ground down by the onslaught of shots down low, leaving him on the canvas in the 11th round.
He valiantly beat the count and saw out another storm in the 12th to go the distance.
But Lomachenko moves closer to supremacy and capturing the remaining lightweight belt, the IBF, which is held by Richard Commey and who is expected to face Lomachenko is he can successfully defend it against Teofimo Lopez.
Campbell will hope to come again, falling short in his second attempt to capture world honours to go with his Olympic gold.
Show all 33 1 /33Lomachenko vs Campbell in pictures Lomachenko vs Campbell in pictures Lomachenko vs Campbell WBA and WBO lightweight champion Vasyl Lomachenko makes his way to the ring.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell The Ukrainian is a fan favourite even in the United Kingdom.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Lomachenko was looking to add the vacant WBC belt to his collection.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Luke Campbell makes his way to the ring inside the O2 Arena.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Campbell made a low-key entrance compared to Lomachenko.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Campbell appeared calm and focussed on the fight.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Campbell enjoyed early success in round one.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell But Lomachenko provided reminders of his dangers.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Despite the reach advantage, Loma was able to land shots.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell And cracked Campbell with a right hook in round two.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Campbell refused to be bullied through and gave as good as got.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell The Briton was able to land on occasion.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell But each time Lomachenko would fight back with gusto.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell The fight became a tactical yet frantic affair.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Lomachenko was able to win most of the heavy exchanges.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Hos jab kept Campbell honest as they moved into the second quarter.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell But still Campbell refused to budge and tried to attack in the fifth.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Lomachenko countered beautifully and went on the attack.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell A barrage of body shots in the fifth nearly ended the fight.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Campbell was clearly hurt as he went back to his corner.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell But miraculously the Briton came out swining in the sixth.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell He even looked to have Lomachenko hurt in the sixth round.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell But as the final rounds wore on, Loma ground down his opponent.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell A brutal barrage send Campbell down tot he canvas in the 11th.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell The knockdown put the cherry on the performance.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Campbell looked to be heading for a premature exit.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell But he took the eight count from referee Victor Loughlin and rose to his feet.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Loughlin was happy for Campbell to continue.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Lomachenko resumed the assault over the final four minutes.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Lomachenko complained about a low blow from Campbell in the final round.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell But the two embraced on the final beel as the crowd cheered and gave both a standing ovation.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell Lomachenko looked confident of victory.
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Lomachenko vs Campbell in pictures Lomachenko vs Campbell And so it proved as he clinched a 119-108, 119-108, 118-109 unanimous decision.
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Click on the gallery above to see the best pictures from the thrilling fight.
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