ROWING WORLD CUP I Venue: Banyoles, Spain Dates: 29-31 May Coverage: Live on BBC Sport website and red button, 0925-1310 BST, Sunday 31 May; Highlights on BBC Two, 1300-1400 Monday 1 June
Purchase had planned to race in the lightweight single scull
Olympic gold medallist Zac Purchase has been ruled out of the opening World Cup regatta of 2009 as he continues his recovery from illness.
Purchase, who won GB's first ever lightweight rowing medal in the double scull, was hit by a virus in February.
New-look eights and a women's quad scull were also confirmed for the event, starting in Spain on 29 May.
Cornwall's Annabel Vernon is the only member of the silver-medal-winning women's quad to remain in that boat.
The members of the quad also race in the double sculls event, and Vernon is rejoined by former partner Anna Bebington in both crews.
Purchase, from Gloucestershire, had planned to race in the lightweight single scull, but Adam Freeman-Pask now takes that slot.
With Purchase's Beijing partner Mark Hunter taking a year off, Rob Williams and Paul Mattick will race in the lightweight double scull.
Former lightweight world champion James Clarke looks set to take the stroke seat in the eight, which includes Tom Ransley and Tom Solesbury, who were on opposing sides in the 2009 Boat Race.
GB Rowing had already announced that triple Olympic silver medallist Katharine Grainger will race in the single scull at the event on the 1992 Olympic lake in Banyoles, near Barcelona.
And Andy Hodge and Peter Reed will move from the four, where they won gold in Beijing, to the pair.
The event is the first of three World Cup regattas, leading up to the World Championships in Poznan, Poland in August.
Rowing's gold stars in indoor challenge
GB squad: Women Single scull: Katherine Grainger Pair: Olivia Whitlam, Louisa Reeve U23 Pair: Jacqui Round, Monica Relph Double sculls: 1. Annabel Vernon, Anna Bebington, 2. Katie Greves, Beth Rodford Quadruple scull: Katie Greves, Beth Rodford, Anna Bebington, Annabel Vernon Eight: Alice Freeman, Jennie Farmer, Jo Cook, Lindsey Maguire, Olivia Whitlam, Louisa Reeve, Natasha Page, Jess Eddie, Caroline O'Connor (cox) Men Single sculls: 1. Alan Campbell, 2. Ian Lawson Double scull: Matt Wells, Stephen Rowbotham Pair: Peter Reed, Andy Triggs Hodge Four: Matt Langridge, Richard Egington, Alex Gregory, Alex Partridge Quadruple scull: Charles Cousins, Marcus Bateman, Bill Lucas, Sam Townsend Eight: Tom Wilkinson, James Foad, James Orme, Tom Burton, Mohamed Sbihi, Tom Solesbury, Tom Ransley, James Clarke, Phelan Hill (cox) Lightweight women Double scull: 1. Hester Goodsell, Sophie Hosking, 2. Andrea Dennis, Laura Greenhalgh Lightweight men Single scull: Adam Freeman-Pask Double scull: Rob Williams, Paul Mattick
Four: Bob Hewitt, Stephen Feeney, Chris Boddy, Chris Bartley