Danny Garcia's eccentric father stole the show as the WBC light-welterweight champion came face to face with Amir Khan ahead of Saturday's unification fight in Las Vegas.

The outspoken Angel Garcia lived up to his reputation once again as he gave an impassioned, heated speech at the main pre-fight press conference.

Garcia, who trains his son, has made unsavoury comments about WBA champion Khan's Pakistani heritage in the past as well as more run-of-the-mill trash talk.

After making a speech in which he again touched on religion - before moving on to a bizarre rant about the strength of Latin America - he sat making gestures when it was Khan's turn to speak, holding up his son's belt, pulling faces, pretending to punch himself in the face and shouting comments.

At one stage, reacting to jeers from Khan's entourage, he was heard shouting "f****** retards". When Khan reacted to his previous comments about Pakistan, he repeatedly said of the Briton: "His DNA is f***** up".

Khan, speaking on the podium, said: "Garcia's team can say whatever they want.

"I promise you - I've never said this at a press conference - I will knock Danny Garcia out and win the titles.

"I will knock him out and if his dad wants it afterwards...That will shut his dad up anyway. I'm not going to do anything physical because his dad talks so much.

"I'm going to hurt his son. I'm going to do it in the ring. I cannot wait until after the fight, when I've knocked his son out and I'm stood here with the titles.

"Another thing, it's funny when he said he's never seen a Pakistani fight. He's going to see a Pakistani fight on Saturday and knock his son out.

"I can't wait to get in there. You're going to see a British Pakistani fight on Saturday and you're going to see him knock your guy out."

Newly reinstated WBA champion Khan is ready to move on from what he describes as the worst six months of his career.

Khan endured a "devastating" spell as he lost his WBA and IBF titles in a surprise defeat by Lamont Peterson last December.

The fall-out from that fight was messy and controversial as Khan raised a number of grievances relating to issues inside and outside the ring.

The saga reached new levels before their scheduled May rematch when American Peterson tested positive for banned synthetic testosterone, before admitting he had already used it before their first fight in December, albeit for medical reasons.

While Peterson's positive test vindicated Khan and undermined the defeat, it also robbed the 25-year-old of the chance to avenge his second career loss. His bitterness has been eased, however, by the news that the WBA have stripped the title from Peterson and strapped it around his own waist once more.

"It was the hardest six months of my career," Khan told Press Association Sport ahead of Saturday's bout with WBC champion Garcia in Las Vegas.

"Straight after the fight I was devastated because I'd lost the fight and I was so upset. Then when I got into the camp I was so happy that I'd got the rematch, because even that was so hard to negotiate. I agreed to whatever they said."

However, the rematch was cancelled and Khan welcomed the WBA's announcement yesterday that he will go into the fight with WBC king Garcia as a title-holder himself.

The bout has been given added prestige by the presence of two recognised world titles and, importantly, the respected Ring Magazine belt which is awarded to fighters regarded as the best in their division.

"I'm glad the WBA are reinstating me as champion again," Khan said. "It means I walk into this fight as world champion and the WBC title is on the line but not only that, the Ring magazine title will be on the line as well.

"It means this fight will really show who is the best fighter in the 140lb division and it will show I'm the best.

"Justice has been done."