Jan 27 - China's biggest sportswear brand Anta Sports Products said on Tuesday it would buy a 29.06% stake in Puma from the Pinault family for 1.5 billion euros ($1.8 billion), making it the biggest shareholder in the German sportswear maker. 

The deal is expected to help Puma increase its sales in the lucrative Chinese market, and help Anta in its quest to become a more globalised business.