There are some screwy statistics out there on official websites, etc.
Here's one from the FEDEX ATP HEAD 2 HEAD--
5'8" (173 cm)
5'9" (175 cm)
I believe that everyone knows that Laver was taller than Rosewall. And I think that everyone believes that Muscles was 5' 7" and Laver was 5' 9" or 5' 10". But to suggest that Laver was 5' 8" and that Muscles was taller is just goofy.
Laver might be 5' 8" today in 2012 at age 74, and may suffer from height reduction as a result of osteoporosis. (Of course maybe it's just a human typographical error.)
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