Callum Smith and Luke Campbell have extended their unbeaten records on their first appearance in the United States.

Both fighters featured early on during the undercard of Shawn Porter's IBF welterweight clash with Kell Brook, but as expected, they made light work of their respective opponents.

Smith, who is regarded as one of Great Britain's biggest prospects, landed a body shot at the end of the opening round to dismiss the challenge of the over-matched Abraham Hernandez.

Campbell, who is bidding to make a quick surge up the lightweight world rankings, stopped Steve Trumble in the second round to extend his unbeaten record as a professional to seven matches.