Injury concerns over Constantine Louloudis have prevented the British Olympic Association from finalising the men's eight crew for London 2012. There are also question marks over the final make-up of the women's eight, with 10 athletes named by the BOA at today's official announcement in the shadow of Windsor Castle.
Louloudis, 20, was selected as stroke of the eight at the start of the season but was then forced to withdraw from both the Belgrade and Lucerne World Cups with a back injury.
The BOA have named only seven rowers and the cox Phelan Hill, who survived a challenge to his selection from 2000 Olympic champion Rowley Douglas. Selection for the women's eight was complicated by a combination of injury and illness, which led to Louisa Reeve, Annabel Vernon and Natasha Page all returning to the boat in Lucerne.
Vicky Thornley, who raced in the quad at the last World Cup regatta, and Lindsey Maguire, who was injured, are also in the mix and battling for final selection. The two athletes who miss out will be selected as reserves. The BOA said final selections would be confirmed "in due course" and take the full squad to 52 athletes, the largest Britain have ever fielded at an Olympic Games.
Despite the uncertainty over the eights, Britain were able to name a powerful squad that featured five of the six Olympic champions from Beijing. Britain were the leading rowing nation in Beijing and they were still on top of the world at last year's world championships in Bled.
Andrew Triggs Hodge, Pete Reed and Tom James are joined by Alex Gregory to defend their Olympic title in the men's four.
Mark Hunter and Zac Purchase will do the same in the lightweight men's double scull. Greg Searle, a gold medallist at the Barcelona Olympics in 1992, will compete at his fourth Games at the age of 40 after being confirmed in the men's eight. Britain are aiming for their first women's Olympic gold medal, with three-time silver medallist Katherine Grainger and Anna Watkins the leading hope in the double.
The women's pair of Helen Glover and Heather Stanning also boast gold medal ambitions.
Debbie Flood and Frances Houghton, silver medallists alongside Grainger in 2008, are joined in the quad by Beth Rodford and Melanie Wilson.The women's lightweight double is comprised Katherine Copeland and Sophie Hosking.
The lightweight men's four features brothers Richard and Peter Chambers plus Chris Bartley and Rob Williams. The men's squad is made up of Charles Cousins, Stephen Rowbotham, Tom Solesbury and Matthew Wells.
The men's pair will be George Nash, who has taken a year out from his studies at Cambridge, and Will Satch. Bill Lucas and Sam Townsend compete in the men's double with Alan Campbell going it alone in the single.