Sisters Jenna and Asha Randall have been included in a nine-strong synchronised swimming team for Great Britain at the London 2012 Olympics but the national performance director Biz Price has warned it may be unrealistic to expect a home medal in the sport.
Jenna Randall, 23, and Olivia Federici, 22, will be competing at their second Games, after finishing 14th in the duet competition in Beijing four years ago.
They join Olympic debutants Yvette Baker, Katie Clark, Katie Dawkins, Jennifer Knobbs, Vicki Lucass, Katie Skelton and Asha Randall in the team competition.
But coach and competitors are adamant finishing on the team or duet podium is unlikely.
"It would probably be reaching a little too far," said Price.
"Knowing our competitors out there and their skills and what they're able to do, we're not quite up at that level yet.
"Some of them have been preparing for 20 years for this and we've been preparing for five at this level," she said.
Federici added: "We've really got our goals set out at this Olympics and over the next four years and we really want to maintain our improvement that we've had.
"When we started our full-time training in 2007, we went to the World Championships and we were 22nd in the duet and now we're top eight.
"In synchro that's quite unheard of and we just want to continue that improvement," she said.
That sharp rise in world rankings is thanks largely to Price, who admits the team was very much an amateur outfit when she arrived five years ago.
"When I first came in, not to be rude, I didn't call them athletes, I just said they were pedestrians doing synchronised swimming," she said.
"We've really worked very, very hard to develop the athlete as a whole and move them up quickly through the physical side of that.
"We've really walked a tightrope on developing the skills and the physical athletes that are needed," she said.
The announcement comes after the team competed at the invitational test event at the Olympic Aquatics Centre last month, where they finished eighth, leaving them with much work to do ahead of the Games.
"We're always trying to improve our routines, we're always working every day to make them better and we've made some changes from the qualifiers to our routines to make them that little bit better and beat our rivals at the Olympics," Jenna Randall said.
For the duet pairing, their main rivals are Russians Natalia Ischenko and Svetlana Romashina, who dominated the test event competition.
Randall and Federici did not contest the duet competition - Randall is recovering from a wrist injury and their place at the Olympics is guaranteed under host nation status - so they are relishing the challenge this summer.
"We train eight hours a day, 42 hours a week, so we're always trying to take the level up each day, so it's really important for us to improve constantly and we're always trying to raise our ranking and push back at those countries we want to beat. There's definitely a great opportunity to do that," Federici said.
They will have the chance to test themselves against some of the world's best again in a fortnight, as they contest the European Championships in Eindhoven.
"The European Championships will give us a good meter of where we are and then we have one more competition in Spain in Majorca in the end of June and then July will be all about that preparation for the Olympics," Price said.