By Courtney Nguyen
November 07, 2014

Roger Federer took several selfies in Europe, Garbine Murguruza shared a precious throwback photo and Lindsay Davenport confirmed she will be working with Madison Keys. Here are the best tweets from the tennis world this week:

Davenport has signed on to help coach Madison Keys through the off-season. 

Seven burning questions ahead of the ATP World Tour Finals

Oudin underwent heart surgery to correct an ahrythmia. 

American tennis pro Melanie Oudin home after heart procedure