How to hit a flat serve?
1. Flat serve grip
2. Flat serve optimal body position
3. Flat serve swing path
4. Two types of flat serves
5. Does a flat serve have spin
6. Flat serve slow-motion footage
1. Flat serve grip
2. Flat serve optimal body position
3. Flat serve swing path
4. Two types of flat serves
5. Does a flat serve have spin
6. Flat serve slow-motion footage
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