3. itf advanced coaches manual free

First, let's clarify what you are actually searching for. The International Tennis Federation (ITF) produces a series of coaching manuals. The is aimed at coaches working with elite junior players (ITF Level 2 and 3) and professional tour-level athletes.

Moving away from static feeding to "live-ball" situations that mimic real match pressure.

Practical instruction on diagnosis, correction techniques, and periodization for advanced training. ITF Tennis Related Free Resources