A Davis Cup clash between the Murray and Bryan brothers would be a special moment, according to Great Britain captain Leon Smith.
Smith named his team on Tuesday for next weekend's World Group first-round match against the United States in Glasgow and included Jamie Murray for the first time since 2011.
That opened up the possibility of a sibling clash against top-ranked twins Bob and Mike Bryan, something that has never happened in the World Group since the current format was introduced more than 30 years ago.
But Jamie will have to fight it out with Dominic Inglot to partner Andy in the doubles, with Smith insisting both will be given the chance to prove their credentials.
The GB captain is currently in Dubai, where Jamie, Andy and Inglot are all playing - and victory for the latter and Romanian partner Florin Mergea over the Bryans in the quarter-finals would certainly give the Londoner a strong case.
Smith told Press Association Sport: "I think it's quite open. Andy and Jamie have obviously played together a lot more.
"But it'll be interesting seeing Dom again this week in Dubai, especially if they come against the Bryans later in the week, which I think is likely to happen. It's wait and see and keep your options open.
"If it did come to it and it was brothers against brothers, it would be a pretty special moment for all of them, but especially for our guys bearing in mind it's in front of a predominantly Scottish fanbase who absolutely adore the Murrays."
After a period of struggling for form, Jamie has enjoyed two seasons of success with Australian partner John Peers and is Britain's highest-ranked doubles player at 31 in the world.
The 29-year-old said: "I'm happy and proud to be back in the Davis Cup team. It's been seven years since I last played a World Group match so to be playing at home in Glasgow will make it extra special."
Smith's side will look for a repeat of last year's performance at the same stage, when they upset the US in San Diego to reach the quarter-finals for the first time since 1986.
James Ward is Britain's second singles player while United States captain Jim Courier sprang something of a surprise by naming 45th-ranked Donald Young alongside John Isner, who missed last year's tie, and the Bryans.
Young's only previous Davis Cup appearance came in San Diego, when he was comfortably beaten by Andy Murray.
The 24-year-old has been preferred to the slightly higher ranked Sam Querrey and Steve Johnson as a reward for his excellent recent form, including a run to his second ATP Tour final in Delray Beach on Sunday.
Querrey is by far the most experienced of the trio but his loss to Ward last time around proved pivotal in Britain's win.
Smith said: "Young's certainly been playing well in the last few weeks but I thought Courier still would have gone for Johnson. They were all pretty close. It's not a huge surprise.
"Young maybe wasn't that well equipped for his first Davis Cup experience but he'll have learned from that."
Smith has named British singles number three Kyle Edmund as the reserve and he could opt to change his team up to an hour before the draw next Thursday.
Keeping the two doubles players gives Smith the option to rest Andy from that rubber should he have a lengthy singles clash on the Friday or Britain be in a strong position.
It is Britain's first home tie in the World Group since 2002 and tickets for the Emirates Arena sold out quickly.
Smith said: "It will be a great atmosphere and I think everyone's going to really enjoy it, although it's no secret it's a tough match.
"We're going to have to at some point cause an upset and at the same time make sure we do whatever we can to put Andy in the best possible place so he can win the matches he'll be expecting to win.
"I think the players should respond well. There's every chance it will go to the fifth rubber."
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