This was made for trolling, but since I'm writing an article (at this moment) about falls of the big champions, maybe any of you would like to share something constructive either here or by a PM (I already got some cool stats from Voo de Mar about Borg and Nadal being the same age).
I remember the circumstances in which Sampras finished his career (IMO Fed is going exactly the same path), or Hingis, Henin, Graf or Seles but can't really say much about Borg (the weirdest career finishing I've ever seen - what happened to this guy?), Laver, Lendl or Edberg
If it was in your opinion only physical fatigue and losing to the younger ones, or there were some stories behind it (that's why I consider for example Hingis as an interesting example).
At this moment I'm at the stage of doing the researches, any serious hint would help. Thanks in advance