Mitchell Smith needed just one round to successfully defend his WBO Inter-Continental title at Wembley’s SSE Arena on Friday night and make it 13 straight wins since turning pro.

The 22-year-old former Bushey Boxing Club fighter beat Dennis Tubieron in double-quick time to retain the super featherweight belt he picked up after five rounds against Chile’s Cristian Palma in May.

The Harrow-born puncher went on the attack from the bell with a succession of heavy blows.

He caught his opponent on the jaw in the opening exchanges and then with just seconds to go in the opening round he unleashed a devastating right hand which caught Tubieron in the ribs leaving the challenger from the Philippines unable to continue.

Smith told the Watford Observer: “I would have been disappointed if I had not taken Tubieron out but I never expected to do it that fast. He swallowed the first right hook which rocked him on the chin and then I got him with the body shot.

“He had a good pedigree with 17 wins and four losses and I demolished him. I have made a big statement and there’s much more to come from me. When everything ticks for me you are going to see knockouts and I live for moments like that.”

Smith’s performance was even more impressive as he went into the fight hiding a broken nose he picked up in sparring five weeks earlier.

He said: “My sparring leading up to the fight was a bit negative because of it and it was always in the back of my mind that I could get caught on it. I stopped sparring two weeks before the fight because of my nose.”

But the Wembley crowd would have had no idea that Smith was slightly undercooked as he destroyed a fighter who had previously taken Josh Warrington the full 12 rounds.

Smith said: “He took Josh Warrington 12 rounds and went toe to toe with him. Did he go toe to toe with me? No. I thought he might be a bit tricky being a southpaw stance but he was no match for me and I know I can be as good as I want to be.”

Now Smith is eyeing a possible match up with Warrington himself.

He said: “I will fight Warrington tomorrow wherever he wants. It’s a fight that I know 110 per cent that I will win. I will go into his back garden in front of 10,000 Leeds fans and knock him spark out. He’s too robotic to be able to beat me, it would be like punching a punchbag because there’s no movement back from him.”

Just three days after his Wembley win, Smith was back in the gym.

He said: “The old me would have had a couple of KFCs and a few beers but not now. I’m fully focused. I set myself goals and I don’t stop until I have met them. My goal is to be world champion by summer next year and until I’ve done that I don’t feel I have achieved. The WBO intercontinental title is nice but it’s just a stepping stone.

“When I first walked into the gym as a six-year-old I said I wanted to be world champion and I’m determined to turn my dreams into reality.”

Smith’s success came eight days after his younger brother Jez maintained his 100 per cent record by picking up his second knockout win against Bulgarian Danny Donchev.