Wawrinka has signed a $20 million deal with Yonex for four years, reports *SportsBusiness Journal*. It was described as a the "most lucrative" endorsement the company has ever signed, covering ...

and any teething troubles in the adjustment to a new Yonex Ezone 100 “would not be for the lack of testing, that’s for sure”. As Murray explained on Friday: “I don’t want to finish my ...