Brother Derek, who finished fourth in the Kentucky Derby and Preakness Stakes, will undergo tests next week to determine if he should remain in training or be given a break, trainer Dan Hendricks said. The tests are expected to include a nuclear scan, which can detect hard-to-find problems, if any exist. "He'll get a battery of tests to see if everything is okay and we'll decide if he gets a couple of easy weeks or a couple of months," Hendricks said.