Concussions Take a Terrible Toll on America's Young Athletes
Karoline "Kari" Krumpholz was destined for water polo greatness. Her father, Kurt Krumpholz, a three-time All-American selection in men's water polo, was inducted into UCLA's Hall of Fame in 2008, the same year Kari's brother, J.W., won an Olympic silver medal with the U.S. water polo team. As a sophomore......