Ali, who turns 70 in January, was last seen in public at Frazier's funeral.
Ali long has suffered from Parkinson's Syndrome, which can be caused by taking too many blows to the head.
Wladimir Klitschko's promoter Bernd Boente said the WBA, IBF and WBO heavyweight champion has been taken to a Duesseldorf hospital because of abdominal pains.
Boente told a German news agency that Klitschko is displaying symptoms of renal colic, a pain commonly caused by kidney stones.
Boente said Klitschko's bout against French challenger Jean-Marc Mormeck on Dec. 10 is not in danger.
SOCCER: The Philadelphia Union's Zac MacMath, Jack McInerney, Danny Mwanga and Amobi Okugo will travel to the Netherlands for this year's Generation Adidas tour, Major League Soccer announced. Coached by Sporting Kansas City manager Peter Vermes and his staff, the Generation Adidas team will train at the world-renowned Ajax Academy in Amsterdam and compete in friendly matches against Ajax Reserves and Dutch second-division clubs FC Volendam and Almere City FC.
Sporting Kansas City acquired midfielder Bobby Convey, a Penn Charter product, from the San Jose Earthquakes in exchange for an international roster slot for 2012. The 28-year-old Convey spent the last three seasons in San Jose, where he was an MLS all-star in 2010 and 2011. He has 11 goals and 30 assists in 164 appearances in Major League Soccer.
Defending champion Spain avoided its biggest challengers in the first round of the 2012 European Championship, leaving Germany and the Netherlands together in the toughest group of the tournament in Kiev, Ukraine.
Attempting to become Europe's first repeat champion, Spain will begin its title defense against Italy on June 10 and then meet Ireland and Croatia in first-round Group C, which will be based in Poland.
The rest of the draw had Czech Republic, Greece, co-host Poland and Russia in Group A; Denmark, Germany, Netherlands and Portugal in Group B; and England, France, Sweden and co-host Ukraine in Group D.
AUTO RACING: Joseph and Rose Mattioli, owners and founders of Pocono International Raceway, were named the recipients of the prestigious Myers Brothers Award. Voted on each year by the membership of the National Motorsports Press Association (NMPA), the Myers Brothers Award recognizes individuals and/or groups who have provided outstanding contributions to the sport of stock-car racing. It is named after two of the sport's pioneers, Billy and Bob Myers.
The Mattiolis' grandson and Raceway CEO, Brandon Igdalsky, accepted the award on behalf of his grandparents, who were unable to attend.
SKIING: Bode Miller's high-risk run turned into high reward as he captured a World Cup downhill on a difficult Birds of Prey course in Beaver Creek, Colo.
The U.S. skier held nothing back as he finished in a time of 1 minute, 43.82 seconds, holding off Beat Feuz of Switzerland by 0.04 seconds. Klaus Kroell of Austria was third.
- Staff and wire reports