Tennis Factory on Instagram: "Unlock your pro-level serve 🔥 Master your pronation with these 3 simple drills that’ll add speed, spin, and control to your serve 🎯 1️⃣ Pronation Throws 🎾 Mimic your serve motion by tossing a ball over the net from the baseline — focus on that wrist and forearm rotation. 20–30 reps to groove the feel. 2️⃣ Service Line Smashes 💥 Toss high and swing through at max speed. Exaggerate your pronation and follow-through. 10–15 reps — go full throttle. 3️⃣ Ground Serves