Re: The calmest players in the history of the sport
Has to be Borg. Totally expressionless. There is only one exception: a match in Stockholm, I think, against McEnroe, of all people, where he has a protracted, heated argument with the umpire, but other than that, nothing. Laver gave nothing away either. Rosewall was calm but would hang his head & look dejected when things weren't going his way - as for example against Connors in 1974. Same goes for Edberg. Other players mentioned - Fed, Sampras, Lendl (of all people) - were hotheaded firebrands in comparison.
"There is no such thing as 'the world'." - Enoch Powell.