You trust them as full-proof sources? When Borg was at the 2008 French Open to see Nadal vs. Federer, McEnroe asked Borg after the match if it was Borg's first appearance there since he last won the title in 1981, clearly expecting a yes reply, and Borg said yes. That is actually incorrect, as Borg was on commentary for a few years after that. I've heard Bud Collins say that Borg left Flushing Meadows in a car after losing in 1981, and exited tennis. The latter bit of that is clearly false, since Borg won a tournament on clay in Geneva straight after.
There are lot of myths surrounding Borg's exit from tennis. One question that the people who believe that McEnroe drove Borg out of tennis can never answer is why did Borg wait until January 1983 to announce his retirement from full-time tennis competition, a time when McEnroe wasn't the reigning champion at any of the majors, nor the WCT Dallas or Masters at MSG titles. Heck, according to Bud Collins, Borg was long gone by January 1983, since he was supposed to have left tennis in September 1981.
Sampras didn't announce his retirement until August 2003, almost a whole year after winning the 2002 US Open, yet there are many people out there who think that Sampras won the 2002 US Open and then retired almost immediately afterwards.
You seem to put a lot of stock in when players formally announce their retirement as opposed to when they actually stop playing; did Sampras play any more after the 2002 US Open? No, he didn't, and it seems likely that his retirement announcement was timed so that he could say farewell at a special ceremony organized for him at the Open a year later, so, for all intents and purposes, he quit after the 2002 US Open. As others pointed out, the fact that Borg played several lucrative exhibitions and some minor tournaments doesn't mean much when you consider he abruptly stopped playing
majors. Once again, a de facto retirement, and, I repeat, one that just happened to coincide with his getting his ass kicked by McEnroe. You also act like you know definitively why he left, seemingly based on his statement about his disputes with tournament organizers; does it occur to you that he might not exactly be objective about the situation and said that to save face? Finally, you keep droning on about McEnroe's decline by the time of Borg's formal announcement, conveniently ignoring the fact that he regained the top spot not long thereafter, with a particularly impressive year in '84, and also apparently don't consider that having worked so hard to overcome Borg, only to have him disappear, might have affected his motivation(at the same time, you seem to imply that Borg could've kept winning had 1) the organizers kowtowed to his demands and/or 2) he felt like giving more effort. No inconsistency there, lol...
This statement, in particular, stands out for its arrogance and presumptuousness:
" His retirement had nothing to do with McEnroe and the suggestion that it did is a total myth."
Who died and made YOU Master of Mind Reading?