Chloe and Claire Gruenke share more in common than being twin sisters. They also run track together. Last week, about halfway through an 800-meter race, Chloe felt "something pull and pop" in her thigh. She fell to the ground, unable to continue the race. In a remarkable demonstration of love and sportsmanship, her sister Claire came up from behind, put Chloe on her back, and carried her the rest of the way and across the finish line!