Iconic Hong Kong clothing brand Bossini’s share price doubles as investors back gymnastics star Li Ning to revive its flagging fortunes

• The stock has skyrocketed after a joint venture controlled by Viva China, a sports talent agency founded by Li, said it would buy a 66.6 per cent stake
• Bossini has floundered in recent years as the once-popular brand failed to adapt in an increasingly competitive consumer market