Lewis Hamilton sprayed Liu Siying with champagne after win in China . The Briton was celebrating his first victory of the season at Shanghai and had been leading for most of the race. Visual Art graduate Siying said she 'did not think too much about it at all ' Hamilton said he would have been concerned if she was unhappy . The defending world champion spoke ahead of the Bahrain Grand Prix .
Lewis Hamilton sprayed Liu Siying with champagne after win in China . He was criticised as 'selfish and inconsiderate ' by an anti-sexism group . Visual Art graduate Siying said she 'did not think too much about it at all ' Hamilton said he would have been concerned if she was unhappy . The defending world champion spoke ahead of the Bahrain Grand Prix .