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Britain's Scott Quigg stopped Spain's Kiko Martinez in the second round in Manchester to defend his WBA super-bantamweight title for the sixth time.

Quigg, 26, struggled in the first round but floored the former world champion in the second with a fierce uppercut and followed up with a further barrage until the referee intervened.

"I was expecting 12 tortuous rounds," he told 91�ȱ� Radio 5 live sports extra. "I was welling up in the ring because hopefully now I'll get some credit. It is everything I've wanted as a kid."

The Bury boxer said the fight had gone according to his game plan.

"The first round was how we knew it would be," said Quigg. "He was very nervous, so was sharp and on edge, and I had to see what he was doing.

"But I got my range and we knew he would be confident and come out quickly in the second, and knew he would walk on to my shot."

Quigg's main rival Carl Frampton defended his IBF title against Mexico's Alejandro Gonzalez Jr in El Paso, Texas at the same time as the fight in Manchester.

Northern Ireland's Frampton took the title from 29-year-old Martinez in Belfast last September.

Quigg's promoter Eddie Hearn said: "His stock's going to keep on rising and obviously the Carl Frampton fight's the one everyone wants."

On the same bill, St Helens fighter Martin Murray continued his journey as a newly-formed super-middleweight with a fifth-round stoppage win over Croatia's Mirzet Bajrektarevic

Murray completely dominated from the first bell and after a ferocious flurry of punches in the fifth, the referee waved the contest over.

Meanwhile, in Germany, London 2012 bronze medallist Anthony Ogogo made his return to the ring after a 12 month lay-off with an Achilles injury.

The 26-year-old laboured to a points win over Ukraine's Ruslan Schelev after six rounds in a middleweight contest.

However, he that he dislocated his shoulder in the second round and faces another lengthy injury break.