Touts are cashing in on Muhammad Ali's death by selling free tickets for his memorial service. His family have warned potential ticket scalpers they will be reported to the authorities and have slammed the practice as "despicable". A group has been tasked with tracking the websites where tickets have been spotted for sale - some reportedly for up to $100 (£69) - and it appears listings have been removed and replaced with "do not buy" warnings.Bob Gunnell, spokesman for the Ali family, said: "I'm personally disgusted and amazed that someone would try to profit off of Muhammad Ali's memorial service. "I hope that those buying tickets or trying to buy tickets would stop those efforts by not purchasing."Muhammad Ali wanted this to be a free event, an event that was open to all. "Frankly, this activity is despicable," he added.

Up to 15,000 people are expected to attend Ali's funeral on Friday after all the tickets for the huge public memorial service at the KFC Yum! Centre in his home town of Louisville, Kentucky, were snapped up. His casket will be paraded through the streets, so fans from around the world can say goodbye to the three-time world heavyweight champion, who died last Friday aged 74.The boxing legend's life is to be celebrated with a traditional Islamic prayer service later today, on the eve of tomorrow's star-studded ceremony. Members of his family will attend a private family funeral before joining members of the public for the Jenazah - also a ticket event - at the Freedom Hall in Louisville. It is where Ali made his professional debut with a victory over Tunney Hunsaker in 1960 - and also where fought his last boxing match in the town, defeating Willi Besmanoff in November 1961