Technical Flaws in Pro
Two Handers: Milos Raonic
Milos Raonic has a huge game—a serve and a forehand that are at the level, or close to the level, of the very top players. His backhand is not. It's not as powerful and is also way more inconsistent.
The question is why. The answer is he has fundamental technical problems. The problem is at the speed of the modern game these are impossible to see clearly with the naked eye.
Previously we used Tennisplayer high speed video to look at the technical flaws in John Isner's backhand (Click Here.) We found that there was a basic incompatibility between his grips and his hitting arm structure.
John hits his backhand with both arms straight or close to straight at contact. But his grip with his bottom hand is too weak for that configuration—not rotated far enough toward the top of the frame to be called even a mild continental.