Reaching the second week of a multisport Games usually means bidding farewell to the swimmers and cyclists, and saying hello to track and field athletes. So it proves in these National Games, with the athletics action unfolding in Guangzhou until Thursday. We are nearly a week into the tennis, but it is hotting up now that players – including Hong Kong’s Coleman Wong Chak-lam – are close to clinching medals. And there’s another round of fencing, in which entire competitions are completed within...