The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet.
• Andy Roddick predicts an ATP shake-up next season as the Roger Federer and Rafael Nadal prioritize health over wins:
"With Roger [Federer] and Nadal, they're going to have to start prioritising their events a little bit more. I think the days are past when they'll win 80 matches in a year, because I don't think it would be smart for them to win 80 matches in a year.
"I think the days when it was the top two then three, then four - I don't think you can define it with a number anymore. Maybe tiers, the top tier, then the next five or six guys who are all equal as far as winning."
• Roddick also says that he's happy as a 32-year-old retiree and doesn't miss the grind of the tour.
• More from Roddick: It's the schedule and ranking system that put him into retirement.
“If Andre Agassi wanted to play only eight events a year we should have held on to him for absolutely as long as we could have,” he said. “If I’d had the option to play eight or 10 events, I might have thought differently about retirement.”
• An interview with Rafael Nadal in Haute Time.
• Watch: Serena Williams dances with a fan at the IPTL.
• Tennis has a history of following the money (as any business does). So how will investors shape what tennis looks like in the future?
• More in the IPTL, where players are choosing money over rest.
• Agnieszka Radwanska is set to name a new "Super trainer" to work alongside her coach Tomasz Wiktorowski. The new consultant is said to be a former Slam champion.
• Some Gael Monfils exhibition-ness at the IPTL:
• More details on the changes to the Australian Open's extreme-heat policy.
• Peter Bodo on Grigor Dimitrov's great season.
• Log-rolling: Caroline Wozniacki has nominated Serena Williams for Sports Illustrated's Sports(wo)man of the Year.
• And they've reunited at the IPTL in Singapore:
• Ashleigh Barty will coach juniors as she figures out what her future entails.
• David Goffin will be training with Ernests Gulbis and Dominic Thiem this off-season.
• A collection of Stan Wawrinka's best shots of the season:
• As Germany is set to enact stronger legislation for the use of performance-enhancing drugs, Vice Sports asks whether imprisoning offenders is the way to go.