Former Bushey Boxing Club member Mitchell Smith is looking to quieten the keyboard warriors who have criticised him when he defends his WBO Inter-Continental title at Wembley Arena on Friday night.

The 22-year-old (12-0) will also be hoping to build on younger brother Jez's success after the junior sibling maintained his 100 per cent record by picking up his second knockout win against Danny Donchev on Saturday night.

Jez, 21, picked up his third win from as many bouts to continue his fledgling pro career with a second-round knockout of the Bulgarian (6-81-1) at York Hall.

Donchev was down in the first after after one minute and 35 seconds of the second, Smith (3-0) ended the contest.

And now Mitchell aims to cap a successful week for the family when he defends his WBO Inter-Continental super featherweight title against Dennis Tubieron at Wembley Arena on Friday night.

Smith Snr. is fighting on the same card as Dereck Chisora, Billy Joe Saunders and Frank Buglioni and puts the WBO strap he picked up against the "terrible" Cristian Palma in May on the line.

And speaking to World Boxing News, Smith was in bullish mood. He said: "Tubieron should be a good test. He’s pretty slick. He made (Josh) Warrington miss a lot but I expect to be naturally bigger and stronger.

"I’ll be looking to stalk him in a measured, professional way, let my shots go and be accurate with them.

"Tubieron looks a bit flimsy, physically, and I can’t see him standing up to me. I’d feel I’d underachieved if I didn’t knock him out."

He added: "I’ve had some stick on the internet with some previous opponents, but I’ve beaten three unbeaten fighters and I’ll be looking to do a good job on Tubieron to keep them quiet.”