Tokyo: Japanese tennis superstar Kei Nishikori has added a golden toilet to his growing collection of silverware after penning a sponsorship deal with a lavatory company.

Kei Nishikori. pic/getty images
Kei Nishikori. Pic/Getty Images

The Japanese ace, who has become the country’s best-ever male tennis star after rising to fourth in world rankings, was presented with the model loo by porcelain firm Lixil — which also makes other household products such as windows and tiles.

“We gave him a miniature golden toilet as we sealed a partnership with him,” a Lixil spokesman said. The toilet sits in its own very little room — a case measuring 30 centimetres (12 inches) square, he said. The sponsorship deal will see Lixil’s logo on Nishikori’s kit for both international and domestic games until August 2018.