Brooklynn Jenkins had no idea how many fans she has.The Johnston fifth-grader's big sister, Amani, is one of the stars of the Dragon girls basketball team. They're undefeated and the defending state champions. But the whole team is a fan of Brooklynn, who is living with cancer for the second time.They wear team shirts celebrating her during her fight — but they've gone a step further with their message that "nobody fights alone."Johnston's opponents often cheer for Brooklynn, too. And she's got fans and teams rooting for her from across the country.