@christiandcastano: MEDICINE BALL CORE WORKOUT 🔥💪🏼 Grab a bench and a medicine ball, and let's get started! Revamp your ab routine! Pass-Unders. 2 x 20 reps Russian Slams. 2 x 10 each side Suitcase Passes. 2 x 15 reps Alternating V-Ups. 2 x 10 reps Sprinter Sit-Ups. 2 x 20 reps Oblique V-Ups. 2 x 20 each side