Admittedly it was long time ago so memories fade. However I believe Laver was serving very poorly. You could tell by the commentators (Bud Collins and I think Jim Simpson) that the general impression was that Laver wasn't playing in top form at that point. Now you could argue and reasonably so that Laver had more pressure on him to serve well because he was serving to Rosewall. It still doesn't take away that it was a great match and overall well played. But I have no doubt Laver and Rosewall played far better matches against each other. The matches at the 1963 French Pro and the 1964 Wembley match are probably two of the finest matches of all time and I'm positive there were of a higher quality than the 1972 WCT final. Laver and Rosewall were at or near their peaks in the other two matches I mentioned but clearly years past their peaks in 1972.