Interesting Kiki. Bergelin has spoken about how he and Borg worked on his serve for a week or two before that tourney at Cumberland tennis club (private). He was spending hours just hitting serves and the courts played fast that year due to heat/no rain. He said it had become "pretty good" in his typical understated way. Was Nastase out there too practicing and giving Borg some advice on serve? Fascinating stuff.
Bjorn Borg defied analysis. No one could manufacture a man that won 6 French Open and 5 straight Wimbledon titles. - Andrew Longmore