Daily Bagel: The men prep for ATP Finals play with selfies in suits

The Daily Bagel is your dose of the interesting reporting, writing and quipping from around the Internet.

• From Christopher Clarey: On Roger Federer'sremarkable improvement at the ripe old age of 33.

• And on that note, a mesmerizing video of Federer lobbing everyone:

[youtube=http://youtu.be/WHSRM847RaY]

• Surprising news: Simona Halep has decided to split with coach Wim Fissette.

• Lindsay Davenport has signed on to work with Madison Keys during the off-season.

• Tomas Berdych is tweeting up a selfie-storm at the World Tour Finals:

Championfie @rogerfederer @keinishikori @DjokerNole @cilic_marin @andy_murray @stanwawrinka @milosraonic pic.twitter.com/Iqjfa3U55L
— Tomáš Berdych (@tomasberdych) November 7, 2014

Championfie no.2 @rogerfederer @milosraonic @keinishikori @stanwawrinka @DjokerNole @cilic_marin @andy_murray pic.twitter.com/XTatUbotSz
— Tomáš Berdych (@tomasberdych) November 7, 2014

• The ATP and WTA Finals, compared:

Different strokes for different folks. pic.twitter.com/lMIGQBzI5C
— Courtney Nguyen (@FortyDeuceTwits) November 7, 2014

• WTA Backspin has an in-depth round-up of how the rankings shook out this year.

• The Washington Post profiles Venus Williams' interior design firm.

• Andy Murray is now a global ambassador for the World Wildlife Fund:

.@andy_murray Thanks for joining us as Global Ambassador! #GoWildForAndy http://t.co/C06cpATnyx pic.twitter.com/C3ro8ZGwqi
— WWF UK (@wwf_uk) November 6, 2014

• Lastly, let's just check in on how Maria Sharapova's off-season is going: