LEE Selby added another title to his collection at London’s O2 but was given “one of the toughest” examinations he has undergone in more than a decade as a professional.

The St Joseph’s ace claimed the vacant IBF intercontinental lightweight crown with a unanimous points (116-112, 116-112, 115-114) defeat of dangerous American Omar Douglas.

Former world featherweight champion Selby was making his debut at 135lb and needed all his experience to fight back following a slow start against the 28-year-old from Delaware.

Selby’s cause wasn’t helped by cuts above both eyes, evoking memories of his previous outing last May, when the Welshman lost his world strap to Josh Warrington.

Head clashes in the second and seventh rounds on Saturday posed problems for Barry’s finest, however, he came through in the end to take his record to 27-2.

"That was one of the toughest,” when reflecting on the contest.

“I'm bringing cuts on myself and it's something I have to work on in the gym.

“When he was rushing in, he was dangerous with the head.

"I have two highly experienced cuts men in the corner, but I kept undoing their work.”

He added: “I am a former world champion. I’ve won a Welsh, Celtic, British, Commonwealth, European, two WBC international titles, this title and the IBF world title.

“That’s nine belts I’ve got to my name, but I'm still learning and nowhere near the finished article.

"He was supposed to be a big puncher and I held his shots well.

“I have a lot to learn. I have great trainers, but I believe I’m always right in the gym, so it’s time to start listening to them.”

Selby firmly believes he can win another world title at his new weight and is willing to take on anyone to fulfil his dream.

“I just want to fight anybody,” he said. “I’m one of those fighters who, hand on heart, will absolutely fight anyone.

“If they said I was fighting Anthony Joshua tomorrow I wouldn't turn it down.”

In Saturday's main event, Chris Eubank Jnr outpointed James DeGale, who twice took counts after being caught with left hooks.