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chosun.com
sports.chosun.com
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Jang Jin-ri (July 7, 2021). "[단독]이용대, '라켓소년단' 특별출연…'꿈'이 '현실'된 특급 만남" [[Exclusive] Lee Yong-dae, special appearance on 'Racquet Boys'... A special meeting where 'dream' became 'real']. Sports TV News (in Korean). Naver. Retrieved July 7, 2021.
Han Ji-soo (September 3, 2021). "이용대, '연예인 배드민턴 동호회' 모집…스파르타 훈련 예고" [Lee Yong-dae, recruiting ‘celebrity badminton club’… Spartan training notice]. Star Today (in Korean). Retrieved September 3, 2021 – via Naver.
Park Soo-in (September 13, 2021). "'라켓보이즈' 이용대 장수영 장성규, 연예인 배드민턴팀 꾸린다" ['Racquet Boys' Lee Yong-dae Jang Su-young Jang Seong-gyu to form a celebrity badminton team]. Newsen (in Korean). Retrieved September 13, 2021 – via Naver.
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