One day after complaining of stomach pain, Todd Helton, the toughest player in Rockies history, landed on the 15-day disabled list with an undiagnosed illness. Doctors were running a battery of tests on Helton at Rose Medical Center. Uncertainty and concern gripped the team. "He's a very sick, sick individual right now," said Rockies general manager Dan O'Dowd, who visited Helton on Saturday, the first baseman's second consecutive night in the hospital. "Our focus is on Todd and his family. We want him to get better."