Just in time for the FIFA World Cup, Hot Pilates founder Shannon Nadj is giving her celebrity-loved workouts a sporty summer makeover with soccer-inspired classes. Think: stability balls standing in for soccer balls, plenty of lower-body work, and exercises designed to have clients feeling more like athletes than ever. Franke Mark “We’re bringing a fun, energetic team atmosphere into the studio,” Nadj tells ET while celebrating the launch of her Bikini Body World Cup Challenge. “Expect challenges that focus on agility, coordination, balance, and endurance, which are all qualities that are essential in soccer. The goal is to celebrate movement and community while creating a workout that feels playful and engaging.” While the classes will still deliver the signature full body burn Hot Pilates regulars know and love, expect a little extra attention on legs this month. Jesse Alexander “We’ll definitely incorporate lower-body work because strong legs are essential for athletic performance, but every class will include core strength and cardio as well,” the fitness instructor explains. “Soccer requires power, endurance, balance, and agility, so …