World number one Andy Murray has admitted he does not know much about his Australian Open second round opponent Andrey Rublev.
Murray will face the 19-year-old Russian, ranked 152nd in the world, on Wednesday from 09:30 GMT.
Fellow Briton Dan Evans will also be in action in Melbourne, against seventh seed Marin Cilic.
"I've never hit with him or played against him, but I've seen him play and he goes for it," Murray said.
"I know a little bit about him and he doesn't hold back. He hits a big ball.''
Rublev is appearing in his second Grand Slam - he was knocked out in the first round of the US Open in 2015.