Auction introduction: The curated online sale is led by collection of works by Leonard Tsuguharu Foujita and a prominent American private collection of Chinese contemporary art, alongside works by Ding Yi, Zao Wou-Ki, Liu Ye, Walasse Ting, Ai Weiwei, Zeng Fanzhi, Yoshitomo Nara, Zhan Wang and Takashi Murakami.