Gi Ka-man has spent the past two years fighting injuries, but the former poster boy of Hong Kong road running is back - and larger than life thanks to a giant billboard in Causeway Bay. The winner of the half marathon at the 2012 Standard Chartered Hong Kong Marathon has missed the past two editions because of persistent knee and leg injuries, but will be back on the starting line next Sunday. Actually, I have picked up these injuries throughout my career. When I was younger, they could be healed overnight or within a week, but those days are gone Gi Ka-man Although age is catching up - he will celebrate his 31st birthday on race day - Gi says he still has more to offer if he can stay fit. "I am only running 80km a week. I will have to utilise my 'old skills' in the race," laughed Gi, who now concentrates on coaching athletes. "My form dropped when I was out of training. I still have a reservoir of endurance, but when I run with my young students at high speed for laps, they are ahead of me. "Nonetheless, I realised it's another angle to see them from. I found it quite enjoyable to see their improvement as I rarely was behind them before my injuries. It's a fascinating scene." Gi, Chan Ka-ho and Christy Yiu Kit-ching have been the face of local distance running for the past few years. Gi broke through at the Hong Kong Marathon in 2012 when he won the half marathon in 1:09:44, beating defending champion Thomas Kiprotich, the Hong Kong-based Kenyan. He planned to step up to the full marathon the following year, but injuries kicked in. "Actually, I have picked up these injuries throughout my career. When I was younger, they could be healed overnight or within a week, but those days are gone," said Gi. "My left knee hurt in 2013, and then the problematic Achilles tendon kept me out last year. My left leg was also troubling me throughout the year." Gi is receiving physiotherapy regularly, and listening to his body a lot more. "It was a lesson for me. I have to take care of my body carefully. I need more rest. "I was upset [at being unable to compete after victory in 2012], but I stayed optimistic when treating my injuries." Gi was still involved in the past two editions of the marathon as a coach, guiding athletes from the Runners Athletic Club, which he founded in 2011. "I am running for the club. I am also running [as a tribute to] a student who passed away last year," said Gi. "Now I am getting old, I have to treasure every available opportunity to test my limits and get good results. It's a countdown. "Even though I still have the ability, doubts exist because of ageing." Gi said he would stay relaxed and seek a podium finish next Sunday, having competed at the Taipei Fubon Marathon last month. "I am picking up my form quickly. I didn't expect to finish third in my age group in the half marathon in Taipei. I was not at full speed and was only testing my leg. I feel great as long as I have no leg pain. "I think I still have more to deliver," said Gi. "If I can stay fit, my long-term goal is to compete and achieve good results in a full marathon overseas." Gi's club has grown from a small group of 30 to about 300 members. They train in Kowloon Bay, Yuen Long, Happy Valley, Tsing Yi and Sha Tin and many will be competing in next weekend's races, including Grace Leung Chau-mei. "I joined when the club was established," said Leung, 32. "I think Gi is a great coach. He leads us and always demonstrates many skills in training." "I debuted in the 10km race in 2010. After joining the club, I switched to the full marathon. I learnt how to train scientifically with Gi." Another student, John Yu Wai-hon, is targeting the junior half-marathon title after finishing fourth last year.