Scott Harrison successfully defended his WBO featherweight title against Walter Estrada then declared the boxing world has still to see the best of him.

Colombian Estrada, who came in as a late replacement for original opponent William Abelyan, started confidently enough but soon found the Scotsman far too much to cope with and the referee called a halt to the fight in the fifth round with Harrison well on top.

Afterwards a delighted Harrison looked forward to bigger and better things.

He said: "This is my second reign as champion and I've had 25 fights so it's getting easier.

"I'm 26 years old just now so I've got a way to go, although I don't know when I'm going to peak.

"I've still got a lot to learn but there's another three belts out there and I'll not rest until I win them.

"I only watched Estrada's tapes for two rounds but he weakened against me round after round and I'm just glad to get it out of the way."

Earlier in the night, Manchester's Anthony Farnell won back his WBU middleweight belt with a demolition of local boy Lawrence Murphy.

Farnell was in ferocious form straight from the first bell and knocked the Scotsman down in the first and second rounds before the referee stepped in during the third to prevent Murphy from taking more punishment.

Afterwards Farnell claimed the fear of losing drove him on to the best performance of his career.

He said: "It was the best win of my life because if I had lost that fight I would have had nowhere to go.

"So it feels even better than when I won it the first time round.

"I trained at 200% for this fight and I needed to win it.

"I knew Lawrence was a great fighter because of what he's done in the past but I had great sparring with several tall fighters like Murphy and it feels great that I've won."

Murphy's manager Alex Morrisson was disappointed in his fighter's display despite the Scotsman suffering a burst eardrum in the first round.

He said: "The first punch of the fight burst Lawrence's eardrum and he lost his balance. But he didn't fight to the gameplan.

"Farnell was goading Lawrence at the weigh-in and in the ring before the fight and Lawrence got suckered in.

"It's his first defeat and whatever he decides to do now we'll go along with it."