Football is my thing, and having lived in Shimizu I'm a big fan of Shimizu S-Pulse. Star man for them these days is Shinji Narazaki. He's also been a regular for the Japan national team recently scoring a whopping 15 international goals in 2009.
Any other Japan football/soccer fans take a look at this link
Japan World Cup Team Blog for a Japan world cup blog, about all matters national team related.