Malaysia's badminton player Lee Chong Wei (C) takes a selfie after a news conference to announce his retirement in Putrajaya, Malaysia, June 13, 2019. (Xinhua/Chong Voon Chung)

Malaysia's badminton player Lee Chong Wei (L) reacts during a news conference to announce his retirement in Putrajaya, Malaysia, June 13, 2019. (Xinhua/Chong Voon Chung)

Malaysia's badminton player Lee Chong Wei (R) reacts during a news conference to announce his retirement in Putrajaya, Malaysia, June 13, 2019. (Xinhua/Chong Voon Chung)

Malaysia's badminton player Lee Chong Wei (R) reacts during a news conference to announce his retirement in Putrajaya, Malaysia, June 13, 2019. (Xinhua/Chong Voon Chung)

Malaysia's badminton player Lee Chong Wei (R) reacts during a news conference to announce his retirement in Putrajaya, Malaysia, June 13, 2019. (Xinhua/Chong Voon Chung)

Malaysia's badminton player Lee Chong Wei reacts during a news conference to announce his retirement in Putrajaya, Malaysia, June 13, 2019. (Xinhua/Chong Voon Chung)

Malaysia's badminton player Lee Chong Wei (C) attends a news conference to announce his retirement in Putrajaya, Malaysia, June 13, 2019. (Xinhua/Chong Voon Chung)

Malaysia's badminton player Lee Chong Wei (R) attends a news conference to announce his retirement in Putrajaya, Malaysia, June 13, 2019. (Xinhua/Chong Voon Chung)

Malaysia's badminton player Lee Chong Wei (C) reacts during a news conference to announce his retirement in Putrajaya, Malaysia, June 13, 2019. (Xinhua/Chong Voon Chung)