Before Federer joined Bill Gates for the "Match for Africa 4" charity event, he stopped by Portland to pay a visit to Nike's headquarters ... hundreds—all wearing Roger Federer shirts.

Tennis fans used Roger Federer's and other ... "Omg those shorts for men are terrible. Jannik is choosing this outfit 100%," a fan quipped. "Nike have a good kit challenge:impossible," a fan ...

Upon reclaiming his place atop the heap of the ATP singles rankings, and becoming the oldest man to do so in the Open era, Roger Federer found that Nike properly ... in men's tennis, so there's ...