National badminton ace Lee Chong Wei has returned for his first day of training at the Academy Badminton Malaysia (ABM) in Bukit Kiara, Kuala Lumpur.
The former world No. 1 was seen spending hours sweating it out at the gymnasium on Friday.
He last played competitively at the Indonesian Open in July last year, where he made it to the semi-finals before losing to reigning world champion Kento Momota.
It was a week after the tournament that Chong Wei flew to Taiwan to undergo a two-and-a-half month treatment after being diagnosed with early-stage nose cancer.
