Our Coaches

Bruce Cheung

HEAD COACH

Bruce founded Lion Rock CrossFit with a clear mission: to authentically share the full spectrum of benefits that CrossFit training can deliver. That vision remains at the core of everything we do.

He believes that with the mindset of “I can do it,” there is nothing that cannot be achieved. For Bruce, progress shows up in the daily choice to push a little further, refine technique, and embrace new challenges. Despite his undeniable strength, he maintains the mentality that he is “never strong enough,” constantly seeking the next level of growth.

Bruce’s journey—from swimming coach to boxing coach, personal trainer, and finally CrossFit coach and gym owner—reflects his unyielding dedication to fitness and to his community. Through rigorous training, ongoing education, and wide-ranging reading, he continuously integrates knowledge from different disciplines to broaden his perspective and deepen his coaching.

Together with his athletes, Bruce continues to progress step by step—building strength, resilience, and a healthier future for all.

Salina Chong

COACH

Meet Salina, also known as Lin, a seasoned fitness practitioner with over 20 years of experience in the industry. From her early days in administrative roles to her current position as a coach, Salina possesses a deep understanding of what it takes to be a quality coach. Her personal journey reflects her warrior spirit, as she transformed from struggling with banded pull-ups to conquering the challenging muscle-up within just five years, and checked in some fun but complicated movements. Salina's passion for connecting with others shines through her love for chatting, sharing knowledge, and caring. Additionally, she has delved deeply into the realm of Olympic weightlifting, further expanding her expertise and enhancing her ability to guide others on their fitness journeys.

Daniel Yuen

SENIOR COACH

Meet Daniel, a delightful and affectionate individual known for his sense of humor. Originally a boxing coach, Daniel underwent a remarkable transformation, becoming a CrossFit coach. As a Virgo the perfectionist, he committed to providing the best possible guidance to his clients. He devotes ample time to reading and research, ensuring he is well-prepared and knowledgeable. What sets Daniel apart is his dedication to testing all training programs himself before implementing them with his clients. This hands-on approach allows him to gain firsthand experience and tailor his coaching to deliver optimal results. With his charismatic personality, passion for fitness, and meticulous approach, Daniel is an exceptional coach who goes the extra mile to support his clients on their fitness journeys.

Chris Sin

COACH

Meet Chris! Chris is a CrossFit Level 2, Masters, Kids, and Gymnastics Trainer who helps clients of all ages and abilities train safely, move better, and feel stronger. Her coaching is grounded in strength and conditioning, sport nutrition, and specialized programming for life stages e.g. Pre- & Post-Natal, Elderly Fitness.

She complements this with technical barbell skills, advanced kettlebell instruction, and mobility and fascia-informed movement. This breadth allows her to scale workouts intelligently, reduce injury risk, and keep progress consistent—whether you’re new to training, returning postpartum, navigating perimenopause, or preparing for competition.

Chris’s own journey began after overcoming obesity and disordered eating, which shaped her balanced, evidence-based approach to health. As operator of Lion Rock CrossFit (LRCF), she blends hands-on coaching with community building, event organization, and education to create a supportive, high-trust environment. Her goal is to empower you to move with confidence, eat with intention, and build habits that last a lifetime.

Mandy Choi

YOGA TEACHER / COACH

Mandy is a zestful person! You can't stop her from CrossFit, weightlifting, mountaineering, diving... when it comes to inner health and rehabilitation, you finds her opposite side on the yoga mat! It allows her to ground and find solace from the stresses of daily life, to stretch after intense workouts, and to clear the mind to reconnect the body for the next exploration! Through yoga, she corrects the imbalances and alleviate the pains caused by her years of fencing during youth, and later on other injuries from being impetuous when learning new sports. She believes a healthy mind is as important as having a healthy body, that right harmony between mind and body cannot be separated and can be trained. She is eager to share her experiences and help others who are just as active, busy, or keen on mastering their beloved sports, to be on the game injury-free: physically and mentally. She loves to have a short meditation or play singing bowls as a reset for the day. Don’t miss out that special vibration from the universe to your inner self!