When management consultant Matthias Weiskopf arrived at work one morning with a black eye, no one in the office batted theirs. That's because the 40-year-old German has been taking boxing lessons at Impakt gym - a fact that his colleagues at the Volkswagen Hong Kong office are aware of.
Considering that Weiskopf's trainer and sparring partner is the huge, four-time muay Thai world champion Alain Ngalani, his colleagues likely expected far worse than just a swollen, discoloured eye.
The lifestyle of a globetrotting, senior executive can be stressful. Weiskopf - who has in the past decade worked in more than 20 European countries, plus Singapore, China and the Middle East - relaxes by exercising. It's the one constant in his ever-changing life. "One of the first things I do when I arrive at my new location is look for a gym and a running trail," he says.
Living in Central, a running trail wasn't "immediately accessible", but he found a gym with ease, and randomly took up boxing. He had never tried the sport before, nor was he a particularly big fan of it (although he does love the Rocky movies), but he had heard that it involves intense cardio.
Four months on, Weiskopf has fallen in love with the sport. He goes at least twice a week and almost never misses a session.
The sport has been good to him too. He says he's lost a bit of fat and gained muscle all around since starting the sessions. "I used to think running was great; that I was in shape," he says. "But really, boxing is another level - I was so sore and tired after the first few sessions."