The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet.
• Video: It's rare that you see Roger Federer get peeved by umpiring, but he wasn't having it during his fourth-round win over Stanislas Wawrinka on Wednesday. Federer called out the supervisor after umpire
Steve Ulrich Fergus Murphy disallowed a Hawk-Eye challenge on Federer's serve. Though I'm not too keen on a player challenging his own serve that was called in, I have to side with Federer here. Ulrich should have given him the challenge. The point happened way too quickly.
• As we prepare for the 29th edition of Roger Federer vs. Rafael Nadal on Thursday night, here are 10 memorable points from their rivalry.
• Nice find from Bryan Armen Graham: Anyone up for a Federer-Nadal drinking game? Might I recommend very, very, very small sips.
• U.S. Davis Cup captain Jim Courier wants John Isner and Sam Querrey to ditch the negative body language and become "street fighters."
"I don't love that in any player, let alone players that play for the United States. I'm more of a believer of faking it if you're not feeling good than showing someone that you're down," Courier said during a conference call.
"I know everyone's different. You can't expect everyone to just immediately snap-to when you ask them to put up a little bit more of a street-fighter front.
"But I'd like our guys to be more street fighters on our team. I like them to walk around with their chests out. Sam and John can absolutely bulldoze almost any player on tour if they're playing well.
• From Reuters, Tracy Austin talks about the tough expectations for young talent in American tennis.
"We don't want someone who is top 20, we want someone who is winning grand slams and those are big shoes to fill. When Serena retires, it's going to be a very sad day."
Asked why the production line of U.S. champions had slowed in recent years, Austin replied: "It's just globalization. Who'd have thought that you would have three players from Serbia, either at number one or winning grand slams in recent years?
"Who would have thought there would be two top women players from Belgium, which is such a small country? The game has become so global now that you have to share the mantle with everybody else."