In 2012, Yonex signed Stan Wawrinka to a full contract including racquets, apparel, shoes and bag. Two years later, the Japanese brand agreed to re-sign the Swiss champion in a record US$20 million deal for four years. The deal is reported to be the most most lucrative contract in Yonex´s history.

Here’s the outfit he’s been wearing at this year’s US Open:

Photo credit: Marianne Bevis, Yonex