Andrew Selby has had just one professional fight but says he is 'absolutely certain' he will be fighting for a world title before next Christmas.

The Welsh amateur sensation, brother of IBF featherweight king Lee, turns 27 on Christmas Day and thinks 2016 will be the year during which he is fast-tracked to world honours.

Selby served notice of his vast potential on his pro debut two weeks ago, when he demolished former African champion Haji Juma in four one-sided rounds at the Newport Centre.

Amateur sensation Selby represented Great Britain at the London 2012 Olympic Games

He takes his second step as a professional at the Bristol Academy on Saturday against an opponent yet to be named and, although he admits he is feeling the pressure, Selby says he is in a rush to live up to the expectations.

He said: 'There is a lot of expectation on my shoulders because of what I did as an amateur and to be honest I was pretty nervous before my debut in Newport.

'I know I have a lot to live up to but the pressure is all on myself and I like that kind of pressure. I know what people are saying, that I can be a world champion and I believe it myself.

'But you only get that far in boxing by hard work and learning while you go along. My brother Lee is the perfect example. He's a great fighter, a world champion, but he only got there by dedicating himself to the sport 24-7.

'Lee is proof of what can be done, even from a small town like Barry. He said when I turned pro that the training would be twice as tough as it was when I was an amateur and he wasn't lying. It is tough, but I would live in the gym if I could so it's no bother to me.'

Selby, who is 14 months younger than his world champion sibling, became Wales' most decorated amateur boxer after winning medals at two world championships and gold at two European finals - and many expected him to stay on for a crack at the Rio Olympics next year.

But the flyweight said: 'I think I was fed up of going up to Sheffield to train all the time and I wanted another challenge.

'Seven years is a long time and the way I looked at it, Rio was still a year away and I would have been nearly 28 when I came out of the amateur set-up if I had stayed.

Selby's brother Lee got to become the current IBF featherweight champion through hard work

'This way I'm 26 and I'm absolutely certain by the time I'm 28 next Christmas I will be fighting for a world title. No doubt in my mind at all.

'The set-up in Sheffield and the coaches are fantastic, but I had to make the change. I needed it.' On Saturday's clash in Bristol, which will be televised live on Channel Five, he added: 'I know it will be an eight-rounder and I want a decent opponent, just like the last one.

'I can't see the point in training for a non-competitive fight. I'm impatient and I want to be boxing at the highest level very soon because I know I am ready for it.'

Coached alongside his brother by Tony Borg at the St Joseph's gym in Newport, Selby is confident of his ability to reach the top, but not cocksure.

'I've got plenty to learn, I know that,' he said. 'I learnt a lot in the fight with Juma the other day. He was a tough kid. I caught him pretty hard and he kept coming back for more. That's the kind of test I need.