Amir Khan returns to boxing with swift 40-second knockout of Phil Lo Greco

British boxer Amir Khan has made a blistering return to the ring by beating Phil Lo Greco by knockout inside 39 seconds at Liverpool's Echo Arena.

The 31-year-old and former unified light-welterweight world champion had not fought for two years, since being beaten by Saul 'Canelo' Alvarez in Las Vegas in May 2016, and he made up for lost time by knocking Canadian Lo Greco down twice in the early stages on Saturday.

Khan, in his first bout on British soil in five years, sent Lo Greco to the canvas with a swift one-two combination inside the opening 30 seconds and the contest was over moments later as the Briton's devastating hand speed pinned his opponent up against the ropes to ensure it was over soon after it had started.

It meant Khan delivered an emphatic statement to Kell Brook, who was watching on from ringside, ahead of a possible all-British grudge match between the two Matchroom stable mates.

"People wanted to see me come back and I wanted to prove a point. I've changed my trainer, I had to make changes," Khan told Sky Sports.

"I came to do a clinical job and be smart and show good movement. Khan is back.

"I want to give the UK fans some big fights and sell out arenas and stadiums.

"We have many fighters around, I want to fight the top guys, I want to win another world title.

"The weight is an issue with Kell, I'm a 147lb fighter. I will fight and beat Kell Brook and the world knows it."