Egypt's Al-Ahly beat local side Sanfrecce Hiroshima 2-1 for a place in Wednesday's semi-final against Copa Libertadores winners Corinthians of Brazil.
The competition may not have captured the imagination back home but the BBC are covering the games.You will be able to watch both the semi-finals and final live on BBC television and online. There will also be highlights of every game available on the Red Button. The BBC Sport website will provide live text commentary of all the important action.
One person who will give the competition top priority is Chelsea manager Rafael Benitez, who insists the Club World Cup is a massive competition for his side.
The Blues represent Uefa as Champions League winners as the flew intoJapan, and they start with that semi-final against club Monterrey on Thursday.
"It's a massive competition," said Benitez, who won the tournament with Inter Milan in 2010.
"I think everyone here in this club has the same idea as me, to win every trophy that you can."
The 52-year-old has suffered a mixed start to his time at Stamford Bridge, being jeered on his home debut by supporters before failing to win his first three games in charge.
But two victories in a week - a 6-1 thrashing of Nordsjaelland in the Champions League and a 3-1 victory over Sunderland - have put his side in good form ahead of this year's Club World Cup.
Benitez says he is not feeling pressure ahead of the tournament, which will give him an opportunity to win his first trophy as Chelsea manager.