The Nike Air Max Cages are nice and come with a 6 month warranty on the soles. So if you wear out the sole within 6 months of purchase they will send you another pair free (they only do this once per shoe purchase though).
Federer had knee surgery and will miss at least 1 month. Probably will affect him all year though.
Federer has been playing very well over the last year, but he can't beat the Joker. Federer has lost to Djokovic in each of the last 3 Majors (when Federer dominated the rest of the field as in winning almost every match in straight sets), and lost to Djokovic in 7 straight grand slam matches. If not for the Joker, Federer would have over 20 grand slams, and there would be no argument that he was the greatest player ever. Another couple years like the last two, and the Joker may be considered the greatest ever.
I'm curious when the US will have a competitive player on the men's side. Isner is probably the best men's player for the US but I'm not even sure he's sniffed a QF at a slam.
They're coming Lokis. Huge generation of American talent in the 18-20 range. Taylor Fritz looks to be the real deal - in the top 150 and only 18. Also Jack Sock has been really coming on strong and is only 23, he probably has a ceiling of the top 10, but could conceivably get there. Noah Rubin has also been crushing it since he turn pro, but I don't think he will ever be a top 25 player. Could see him as a solid top 100 career ATP guy though.
Isner's made a US Open QF and the fourth round at his last two slams, but I think it's too tough on his body to play three out of five. He's not built for slams
Fritz is the only one with pro results to match the hype the junior US men get IMO.