Helio Castroneves wants fourth Indy 500 title

INDIANAPOLIS (AP) -- Helio Castroneves is getting serious about the Indianapolis 500.
  
The gregarious Brazilian driver who won over racing and dancing fans with his personality is back at Indy focused, determined and barely cracking jokes.
  
This year, he's all business.
  
Yes, Castroneves is making his second attempt to break up the American monopoly of four-time 500 winners.
  
After a dismal 2011 season, he's taken a simple rule into this season's races: Just win. His next chance happens to come Sunday at his favorite track and with a chance to join A.J. Foyt, Al Unser and Rick Mears in race's most exclusive club.