The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet.
• An interesting look at the impact of technological changes and players' improved training on the game. The Economist writes: "The International Tennis Federation, the sport’s governing body, is starting to get concerned about just how long the game can continue to evolve this way before it becomes unplayable. ... 'The danger is that if the game continues to get more dynamic, and players continue to hit the ball harder, then at some point the equilibrium you have between striker and receiver will be lost,' says Stuart Miller, the ITF’s head of science and technology."
• Douglas Robson gets a first-hand look at the racket customization process for the pros.
• Tomas Muster calls it a career in Vienna.
• How the WTA Championships could affect Istanbul's Olympic bid.
• A report on the Champions Series stop in Chicago.
• People can knock the WTA for a variety of reasons, but lack of leadership isn't one of them.
• SI.com's Bruce Jenkins calls for an end to Super Saturday.
• A fun pictorial look back at Chris Evert.