Argentine loses his Aussie oppenent Tomic in final of Sydney International tournament . It 's a tough ask . Del Potro starts Australian Open bid with 1st round match against Rhyne Williams from U.S. Tomic will face world no . 1 Rafael Nadal in Melbourne opener . American John Isner wins Australian Open warm - up event in Auckland .
Argentine loses his Aussie oppenent Tomic in final of Sydney International tournament . Del Potro starts Australian Open bid with 1st round match against Rhyne Williams from U.S. Tomic will face world no . 1 Rafael Nadal in Melbourne opener . American John Isner wins Australian Open warm - up event in Auckland .