Casper Ruud – Basic Service 3.0
Photos below show Casper's service during 2015 Orange Bowl. Even thought that his service was not that dominant back then, the most important basic characteristics of the Service 3.0 were already there at that time and provided a solid base for further development/improvement. The most important among them is the proper understanding of the "follow through 1" with a well-executed (well-pronounced) targeted pronation.