JOIN USBarcelona outclass Al Sadd
The Spanish and European champions, bidding to win the seven-team competition for the second time in three years, face Brazil's Santos in Sunday's final in Yokohama.
The gloss was taken off their win in front of a crowd of 66,000 when Spain striker David Villa broke his left leg after collapsing under a heavy challenge in the first half.
"We're all very sad for David," Barca coach Pep Guardiola told reporters. "He will be out for a long time with this sort of break. It's a massive blow for him and Barcelona.
"He will return to Barcelona as soon as possible for an operation, escorted by a physician. We will have to win the Club World Cup without him but he is in our hearts."
A glum-looking Guardiola added: "We didn't give Al Sadd a chance today."
Barca took the lead in comical fashion after 25 minutes when Pedro's cross bobbled off Al Sadd defender Nadir Belhadj and goalkeeper Mohamed Saqr's panicked clearance bounced off Adriano's shin into the back of the net.
Adriano scored his second goal two minutes before halftime. Argentine wizard Lionel Messi then brilliantly picked out Seydou Keita, who calmly flicked home Barca's third goal in the 64th minute. Substitute Maxwell completed the rout after 81 minutes .