Maggie Steffens

Steffens, 23, is a nightmare for any goalie but Johnson, having scored a tournament-high 21 times as the U.S. won gold in 2012.

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide—from Peter King, Tom Verducci, Lee Jenkins, Andy Staples, Grant Wahl, and more—delivered straight to you, along with up-to-the-minute news and live scores.