“Over the next three months, SI.com will profile two valuable, but perhaps undervalued, under-the-radar players on each of the U.S. men’s national team’s Group G opponents at this summer’s World Cup. As a result, the likes of Cristiano Ronaldo, Mesut Ozil and Asamoah Gyan will make way for their lesser-heralded teammates in this space. The first in the Know Your Enemy series is Germany midfielder Toni Kroos.” SI – Jonathan Wilson (Video)