Andy Murray is gearing up for a first competitive senior match against his brother Jamie on Wednesday.
Murray sealed the showdown at the Montreal Masters when he and partner Leander Paes won their opening doubles tie against Jeremy Chardy and Kevin Anderson on Sunday.
The brothers - who teamed up to lead Great Britain into the Davis Cup semi-finals with victory over France last month - have never played professionally against each other.
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Andy Murray told reporters in Canada: "We've obviously played a lot against each other in juniors, but we haven't played against each other for a very long time.
"So it'll be nice in some ways to do that but also it's not easy."
Jamie Murray boasts the better doubles credentials having reached this year's Wimbledon men's doubles final with John Peers and won the recent German Open in Hamburg.
Murrray and Peers are seeded seventh in the event and received a first-round bye.