Teenager Alex De Minaur stuns Steve Johnson in Brisbane
Australian teenager Alex De Minaur claimed the biggest scalp of his career in the opening round of the Brisbane International.
The 18-year-old wild card, ranked 208th in the world, knocked out 44th-ranked American Steve Johnson 7-6 (9/7) 6-4 and will play fourth seed Milos Raonic in round two.
De Minaur is one of a group of highly promising young Australians and he reached the Wimbledon junior final in 2016.
There was also an upset in the other first-round match played on Sunday, with Alexandr Dolgopolov knocking out sixth seed Diego Schwartzman 6-4 7-6 (7/3).