U.S. & World
Maggie Steffens hails from a family of water polo players. Her father represented Puerto Rico in major international tournaments, and her sister Jessica earned a silver medal at the 2008 Beijing Olympics. Stanford's Steffens joined her sister on the Olympic team in 2012 and won Olympic gold. Maggie, whose hometown is Danville, Calif., is known for never running out of energy and listened to the same Maroon 5 song – “Lucky Strike” – before every single match of the 2012 Olympic tournament.