Tweets of the week: Ivo Karlovic's cheeky Twitter Q&A

In the midst of his Davis Cup celebrations, Roger Federer makes a very Swiss pit stop, Andy Murray opens up the floodgates, and Ivo Karlovic gets sassy in his Twitter Q&A. Here are some of the week's best tweets.

[tweet=https://twitter.com/rogerfederer/status/537036084467621888]

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[tweet=https://twitter.com/stanwawrinka/status/536905313354780672]

In the span of a few hours, Andy Murray announced his split with long-time friend and coach Dani Vallverdu, fitness trainer Jez Green, and his engagement to Kim Sears:

[tweet=https://twitter.com/judmoo/status/537723265557753856]

[tweet=https://twitter.com/MariaSharapova/status/537690073874309122]

Remembering the incredible life of Dodo Cheney:

[tweet=https://twitter.com/thetracyaustin/status/537383060178624512]

[tweet=https://twitter.com/tenniswarehouse/status/535948140155662336]

[tweet=https://twitter.com/keinishikori/status/537487580837978112]

[tweet=https://twitter.com/LDavenport76/status/537812844163919872]

[tweet=https://twitter.com/NickKyrgios/status/537006920112943104]

[tweet=https://twitter.com/iptl/status/538347859792236544]

[tweet=https://twitter.com/roger_rasheed/status/537991673364504576]

And a few of the best Q&As from Ivo Karlovic's impromptu tweet-fest:

[tweet=https://twitter.com/ivokarlovic/status/537222808112463872]

[tweet=https://twitter.com/ivokarlovic/status/537219556029517824]

[tweet=https://twitter.com/ivokarlovic/status/537218867685511169]

[tweet=https://twitter.com/ivokarlovic/status/537217870372286464]

[tweet=https://twitter.com/ivokarlovic/status/537210397313728513]

Daily Bagel: Andy Murray proposes to long-time girlfriend Kim Sears