Who's calling? doxepin veterinary use Murray’s biggest current contract is a five-year clothing and footwear deal with Adidas, worth an estimated £15 million. The arrangement expires at the end of 2014 and negotiations have already started about a new contract, expected to double in value. His new deal is likely to make him a global brand ambassador, joining an elite band that includes David Beckham, Lionel Messi and NBA basketball star Derrick Rose.