ildcard Thanasi Kokkinakis at Miami OpenYellow or green: Roger Federer’s comment on tennis balls’ colour adds fuel to fireThis was Roger Federer at his hard-to-beat best, a performance so unlike the pair of uncomfortable five-setters he labored through to begin the U. Open could be top-seeded Rafael Nadal, whose 15 Grand Slam titles include two at Flushing Meadows. “Thought it might be pretty good when it was in the air,” said the former U. Serbia take outright lead of Group D, Wales beat Austria at World Cup qualifiers. Looking at the last couple months, he is maybe not ranked top 10 in the world, but he’s somebody who played really good tennis in the last couple months. “Just look at the nutmeg in the second half, he’s in the middle of two players and he does that, it shows he is a truly great player. Jinksunderstands that at this stage he is the third opener in the team. Mayer briefly threatened a comeback when he pulled a break back for 5-3 in the fourth set but Nadal served it out at 5-4 with Mayer sending a forehand long on match point. First things first, though: Nadal was scheduled to face Leonardo Mayer in the third round later Saturday. With Riyad Mahrez missing, Algeria lose in World Cup qualifying.