A HUSBAND doubling up as a coach – it’s an interesting combination. But Li Na, China’s top tennis player, clearly thinks it makes sense as her husband, Jiang Shan, has been coaching her. Her performance this year has been a bit disappointing and,with the Olympics coming, doubts have been raised about her choice. But the 30-year-old player has insisted on keeping her coach. “Up to now, I haven’t had any intention of recruiting a foreign coach,” she told China Daily.