Originally Posted by SystemicAnomaly
That landing is a actually a product of serving rules that were in place when Pancho learned to serve. He started his "pro" career in the late 1940s. Prior to the 1960s, serve rules required players to keep one foot in contact with the ground and behind the baseline before striking the ball.
Many players continued this style of serving in the '60s and '70's. Take a look at Rod Laver's serve in the early/mid '70s. Many coaches were still teaching this style even in the 80s. Borg, OTOH, in the early '70s was jumping (into the court) and landing on the front foot before the back leg swung forward.
S&V greats of the 80s and 90s, like Edberg and Sampras, employed a jumping style similar to Borg. Becker, however, was a bit different.
That explains why all my old coaches during the 1980s, who were 50+ years old at the time, served as if they were walking into the court.
Do you know why they changed the rule?